you can also try bootstraping, but I don't know any up to date and trusted bootstrap.dat source.
Bootstrapping does not make syncing any faster as of 0.10.0. Syncing over the p2p network is faster. Additionally, OP's problem has nothing to do with syncing and rather having to continuously reindex.
OP, what version of Bitcoin Core are you using? What OS? Having to reindex is usually indicative of hardware failure. I recommend that you run a diagnostic on your hard drive and see if there are any problems.