I found a large number of multiple accounts belonging to one person or group of related people.
Why I decided that these accounts are multiple accounts:
1. Created on the same days.
2. Participate only in the bounty.
3. All listed accounts participate in absolutely identical bounty.
4. All the posts of these accounts are the same in terms of design (the same message design template is used).
Directly the list itself:
1. nguyenthuphuong2 - https://bitcointalk.org/index.php?action=profile;u=2237778
2. lediemthanh8 - https://bitcointalk.org/index.php?action=profile;u=2247223
3. truongduy8 - https://bitcointalk.org/index.php?action=profile;u=2247237
4. nguyentien - https://bitcointalk.org/index.php?action=profile;u=1415710
5. hanhphuc37 - https://bitcointalk.org/index.php?action=profile;u=2247277
6. phamkhoe8 - https://bitcointalk.org/index.php?action=profile;u=2247299
7. huonghoa48 - https://bitcointalk.org/index.php?action=profile;u=2247317
8. quynhnhu24 - https://bitcointalk.org/index.php?action=profile;u=2247379
9. lehonglanh2 - https://bitcointalk.org/index.php?action=profile;u=2247398
10. nguyentrungnghia34 - https://bitcointalk.org/index.php?action=profile;u=2247411
11. kieuminhanh - https://bitcointalk.org/index.php?action=profile;u=2247425
12. tranhoangan75 - https://bitcointalk.org/index.php?action=profile;u=2247458
13. trinhminhhai - https://bitcointalk.org/index.php?action=profile;u=2247494
14. trinhminhhoa - https://bitcointalk.org/index.php?action=profile;u=2249031
15. tranminhdu85 - https://bitcointalk.org/index.php?action=profile;u=2249063
16. leanhkhoa4 - https://bitcointalk.org/index.php?action=profile;u=2249072
17. leanhchuong - https://bitcointalk.org/index.php?action=profile;u=1485232
18. leminhcuong5 - https://bitcointalk.org/index.php?action=profile;u=2249099
19. lethitham - https://bitcointalk.org/index.php?action=profile;u=1484838
20. nguyenminhtien - https://bitcointalk.org/index.php?action=profile;u=1475446
21. vuhanhphuc - https://bitcointalk.org/index.php?action=profile;u=1483363
22. nguyenthuhong7 - https://bitcointalk.org/index.php?action=profile;u=2249174
23. dangvulinh50 - https://bitcointalk.org/index.php?action=profile;u=2249191
24. huynhtritinh6 - https://bitcointalk.org/index.php?action=profile;u=2249199
25. caovanchien2 - https://bitcointalk.org/index.php?action=profile;u=2249207
26. nguyenvanthinh2 - https://bitcointalk.org/index.php?action=profile;u=2249230
27. nguyenthilan3 - https://bitcointalk.org/index.php?action=profile;u=2249238
28. ngantran9 - https://bitcointalk.org/index.php?action=profile;u=2225017
29. nguyenmyle09 - https://bitcointalk.org/index.php?action=profile;u=2225111
30. nguyenduchai8 - https://bitcointalk.org/index.php?action=profile;u=2225316
31. phamlinh6 - https://bitcointalk.org/index.php?action=profile;u=2225512
32. thanhtoan7 - https://bitcointalk.org/index.php?action=profile;u=2225589
33. nguyencuc24 - https://bitcointalk.org/index.php?action=profile;u=2225712
34. nguyenphuonglinh - https://bitcointalk.org/index.php?action=profile;u=1691503
35. tranghauyen - https://bitcointalk.org/index.php?action=profile;u=1707769
36. tranthuyduy - https://bitcointalk.org/index.php?action=profile;u=1587507
37. hoangdoquyen - https://bitcointalk.org/index.php?action=profile;u=1597999
38. danglananh - https://bitcointalk.org/index.php?action=profile;u=1598551
39. duongvandiep - https://bitcointalk.org/index.php?action=profile;u=1633604
40. tranthuy12 - https://bitcointalk.org/index.php?action=profile;u=1624365
41. nguyenbaothanh - https://bitcointalk.org/index.php?action=profile;u=1690480
42. phan ha trang - https://bitcointalk.org/index.php?action=profile;u=1707823
43. nguyenyennhi - https://bitcointalk.org/index.php?action=profile;u=1873369
44. tranphong39 - https://bitcointalk.org/index.php?action=profile;u=1436815
45. le minh an - https://bitcointalk.org/index.php?action=profile;u=1578333
46. toanmanh - https://bitcointalk.org/index.php?action=profile;u=1578470
47. nguyenbetu - https://bitcointalk.org/index.php?action=profile;u=1579183
48. nguyenminhthuan - https://bitcointalk.org/index.php?action=profile;u=1579290
49. lamanhkim - https://bitcointalk.org/index.php?action=profile;u=1579404
50. phamthehuy - https://bitcointalk.org/index.php?action=profile;u=1586825
51. truongchian - https://bitcointalk.org/index.php?action=profile;u=1587273
52. nguyentuantu - https://bitcointalk.org/index.php?action=profile;u=1624055
53. tranngochan4 - https://bitcointalk.org/index.php?action=profile;u=2227602
54. hoangnhatminh3 - https://bitcointalk.org/index.php?action=profile;u=2232262
55. truongthuyngan7 - https://bitcointalk.org/index.php?action=profile;u=2249080
56. tranhoaian18 - https://bitcointalk.org/index.php?action=profile;u=2232236
57. tranthuthuy5 - https://bitcointalk.org/index.php?action=profile;u=2232387
58. phanaiphuong3 - https://bitcointalk.org/index.php?action=profile;u=2232555
59. thaomy29 - https://bitcointalk.org/index.php?action=profile;u=2249077
60. thaithuhang86 - https://bitcointalk.org/index.php?action=profile;u=2232674
61. nguyenminhthu1 - https://bitcointalk.org/index.php?action=profile;u=2232738
62. nguyenhoangminh2 - https://bitcointalk.org/index.php?action=profile;u=2227684
63. hoahuongduongg - https://bitcointalk.org/index.php?action=profile;u=2247333
64. nguyenkim2 - https://bitcointalk.org/index.php?action=profile;u=2247362
65. phamthilieu6 - https://bitcointalk.org/index.php?action=profile;u=2247440
66. nguyen uyen - https://bitcointalk.org/index.php?action=profile;u=1386510
67. nguyenthuychi2 - https://bitcointalk.org/index.php?action=profile;u=2227704
68. phamthuytien2 - https://bitcointalk.org/index.php?action=profile;u=2232257
69. nguyenchinhan2 - https://bitcointalk.org/index.php?action=profile;u=2232275
70. phancongvinh3 - https://bitcointalk.org/index.php?action=profile;u=2232292
71. nguyenhuonggiang6 - https://bitcointalk.org/index.php?action=profile;u=2232300
72. tranthuynhu5 - https://bitcointalk.org/index.php?action=profile;u=2232320
73. tranthainguyen6 - https://bitcointalk.org/index.php?action=profile;u=2232354
74. nguyenngocdung96 - https://bitcointalk.org/index.php?action=profile;u=2232351
18.10.2018 - New portion of multiple accounts owned by one person:
1. https://bitcointalk.org/index.php?action=profile;u=2351978
2. https://bitcointalk.org/index.php?action=profile;u=2351997
3. https://bitcointalk.org/index.php?action=profile;u=2352017
4. https://bitcointalk.org/index.php?action=profile;u=2352057
5. https://bitcointalk.org/index.php?action=profile;u=1284589
6. https://bitcointalk.org/index.php?action=profile;u=1287297
7. https://bitcointalk.org/index.php?action=profile;u=1288611
8. https://bitcointalk.org/index.php?action=profile;u=1294420
9. https://bitcointalk.org/index.php?action=profile;u=1296322
10. https://bitcointalk.org/index.php?action=profile;u=1300388
11. https://bitcointalk.org/index.php?action=profile;u=1301820
12. https://bitcointalk.org/index.php?action=profile;u=1303561
13. https://bitcointalk.org/index.php?action=profile;u=1309306
14. https://bitcointalk.org/index.php?action=profile;u=1306098
15. https://bitcointalk.org/index.php?action=profile;u=1304200
16. https://bitcointalk.org/index.php?action=profile;u=1308024
17. https://bitcointalk.org/index.php?action=profile;u=1306718
18. https://bitcointalk.org/index.php?action=profile;u=1310715
19. https://bitcointalk.org/index.php?action=profile;u=1314720
This account in my opinion may be the author of this collection of multiple accounts - https://bitcointalk.org/index.php?action=profile;u=1176771
19.11.2018 - New Multiple Accounts Farm (accounts are located by date of their creation) :
1. thuy214302 - https://bitcointalk.org/index.php?action=profile;u=1408063
2. haihong - https://bitcointalk.org/index.php?action=profile;u=1409641
3. nguyengiau - https://bitcointalk.org/index.php?action=profile;u=1415870
4. hoangthai - https://bitcointalk.org/index.php?action=profile;u=1422072
5. dungtiennguyen - https://bitcointalk.org/index.php?action=profile;u=1422394
6. anhnga10 - https://bitcointalk.org/index.php?action=profile;u=1422512
7. lamngoc - https://bitcointalk.org/index.php?action=profile;u=1540407
8. tranminhanh - https://bitcointalk.org/index.php?action=profile;u=1541279
9. lethihuong - https://bitcointalk.org/index.php?action=profile;u=1541336
10. ngolinh - https://bitcointalk.org/index.php?action=profile;u=1541416
11. anhhuy - https://bitcointalk.org/index.php?action=profile;u=1541470
12. tranhailong - https://bitcointalk.org/index.php?action=profile;u=1541525
13. nguyennguyen1 - https://bitcointalk.org/index.php?action=profile;u=1546091
14. hoanglo - https://bitcointalk.org/index.php?action=profile;u=1546146
15. leanhvy - https://bitcointalk.org/index.php?action=profile;u=1546191
16. levanquang - https://bitcointalk.org/index.php?action=profile;u=1546233
17. tranmaivan - https://bitcointalk.org/index.php?action=profile;u=1546271
18. vanchung - https://bitcointalk.org/index.php?action=profile;u=1546315
19. leminhngoc - https://bitcointalk.org/index.php?action=profile;u=1546365
20. tranhuynam - https://bitcointalk.org/index.php?action=profile;u=1546451
21. nguyenhuong9 - https://bitcointalk.org/index.php?action=profile;u=1546582
22. nguyenhanh - https://bitcointalk.org/index.php?action=profile;u=1546609
23. tyba465 - https://bitcointalk.org/index.php?action=profile;u=1546654
24. ngochue - https://bitcointalk.org/index.php?action=profile;u=1546875
25. thanhthuy - https://bitcointalk.org/index.php?action=profile;u=1547044
26. maccuoi - https://bitcointalk.org/index.php?action=profile;u=1547136
27. havanthanh - https://bitcointalk.org/index.php?action=profile;u=1547241
28. kimloan1 - https://bitcointalk.org/index.php?action=profile;u=1547313
29. tranduyen - https://bitcointalk.org/index.php?action=profile;u=1547369
30. yenha - https://bitcointalk.org/index.php?action=profile;u=1547427
31. vobichtram - https://bitcointalk.org/index.php?action=profile;u=1547568
32. hovannhat1 - https://bitcointalk.org/index.php?action=profile;u=1547659
33. nganthanh - https://bitcointalk.org/index.php?action=profile;u=1553003
34. nguyenduykhai - https://bitcointalk.org/index.php?action=profile;u=1553272
35. nguyentuan2 - https://bitcointalk.org/index.php?action=profile;u=1553480
36. trannhathai - https://bitcointalk.org/index.php?action=profile;u=1553586
37. ongtrum - https://bitcointalk.org/index.php?action=profile;u=1553675
38. doquynhtrang - https://bitcointalk.org/index.php?action=profile;u=1553798
39. hienhoang1 - https://bitcointalk.org/index.php?action=profile;u=1553938
40. nganthuy - https://bitcointalk.org/index.php?action=profile;u=1554048
41. tranvanhoi - https://bitcointalk.org/index.php?action=profile;u=1554277
42. nguyenthom - https://bitcointalk.org/index.php?action=profile;u=1554363
43. lethienan - https://bitcointalk.org/index.php?action=profile;u=1558222
44. huynhthuong - https://bitcointalk.org/index.php?action=profile;u=1558248
45. lanpham - https://bitcointalk.org/index.php?action=profile;u=1558293
46. minhkhiem - https://bitcointalk.org/index.php?action=profile;u=1558304
47. truongtuyen - https://bitcointalk.org/index.php?action=profile;u=1558325
48. phamphong - https://bitcointalk.org/index.php?action=profile;u=1558335
49. nguyenson1 - https://bitcointalk.org/index.php?action=profile;u=1558356
50. thaison - https://bitcointalk.org/index.php?action=profile;u=1565150
51. thanhdoan - https://bitcointalk.org/index.php?action=profile;u=1565301
52. hung_nguyen_5 - https://bitcointalk.org/index.php?action=profile;u=1565378
53. phatduong - https://bitcointalk.org/index.php?action=profile;u=1571178
54. tothanhcuong - https://bitcointalk.org/index.php?action=profile;u=1571444
55. duongduong - https://bitcointalk.org/index.php?action=profile;u=1571685
56. hathidu - https://bitcointalk.org/index.php?action=profile;u=1571872
57. ngokien1 - https://bitcointalk.org/index.php?action=profile;u=1571950
58. phanvanton - https://bitcointalk.org/index.php?action=profile;u=1578448
59. damtranhong - https://bitcointalk.org/index.php?action=profile;u=1589381
60. hoangthanhquang - https://bitcointalk.org/index.php?action=profile;u=1598305
61. camtu - https://bitcointalk.org/index.php?action=profile;u=1684394
62. tim_ve - https://bitcointalk.org/index.php?action=profile;u=1684684
63. vansutuyduyen275 - https://bitcointalk.org/index.php?action=profile;u=1890165
64. quyetluong049 - https://bitcointalk.org/index.php?action=profile;u=1895098
65. heobaybi882 - https://bitcointalk.org/index.php?action=profile;u=1895651
66. kmthu594 - https://bitcointalk.org/index.php?action=profile;u=1898827
67. tranvu3 - https://bitcointalk.org/index.php?action=profile;u=2124668
68. LE VONG - https://bitcointalk.org/index.php?action=profile;u=2430277
69. PHAN UT NGHIA - https://bitcointalk.org/index.php?action=profile;u=2430301
70. TRAN VAN CHUNG - https://bitcointalk.org/index.php?action=profile;u=2430310
71. NGUYEN THANH THANH - https://bitcointalk.org/index.php?action=profile;u=2430334
72. TUYET MAI - https://bitcointalk.org/index.php?action=profile;u=2430364
73. THUY CHU - https://bitcointalk.org/index.php?action=profile;u=2430374
74. TUAN NGUYEN - https://bitcointalk.org/index.php?action=profile;u=2431320
75. HOANG QUAN - https://bitcointalk.org/index.php?action=profile;u=2431326
76. LE VAN BINH - https://bitcointalk.org/index.php?action=profile;u=2431331
77. LUU MAI VY - https://bitcointalk.org/index.php?action=profile;u=2431336
78. NGUYEN VIET CUONG - https://bitcointalk.org/index.php?action=profile;u=2431338
79. UYEN NHI - https://bitcointalk.org/index.php?action=profile;u=2431343
80. LINH MINH - https://bitcointalk.org/index.php?action=profile;u=2431349
81. HUONG PHAM - https://bitcointalk.org/index.php?action=profile;u=2431358
82. TRAN MY NGAN - https://bitcointalk.org/index.php?action=profile;u=2431359
83. THANH PIN - https://bitcointalk.org/index.php?action=profile;u=2431361
84. HUNG NGUYEN HUNG - https://bitcointalk.org/index.php?action=profile;u=2431370
85. THUY NGOC - https://bitcointalk.org/index.php?action=profile;u=2438065