Ok so if you have too less stakes it is because of the splitting of you coin blocks. You can see that when you activate coin control and go to the sending side.
The thing is, a block of 1000 coin can only stake once all few hours. When you have instead 10 blocks with 100 coins you will earn 10 stakes in that time. So it is a technic to split all coins to different addresses inside the wallet and let them stake. They will split each time the blocks stakes all alone but they need time for it and the more coinblocks you have from the beginning, the bigger is your multiplicator.
I hope you understand what i mean.
Edit: where the ****is remy?
LOL!
Warning, a large senseless wall of text approaching.
There are be different types of staking strategies, that can be put
in place by choosing or not the size of the coin piles, and if put them
all into a single address or multiple addresses.
Each strategy has its pro and cons.
For example, the strategy of having many small "piles", if on one hand
it allows to have a proportionally greater number of candidates to the
stake, at the same time each of them will have less "weight" and therefore
less possibility of producing a stake (especially if the posDiff has an
increase), and will produce interest on a smaller portion of the total
figure.
A single pile instead would have greater weight, and more probabilities
to produce a stake, but in case of bad luck, even a long time without seeing
anything positive.
As rightly pointed out, when stake a "pile" with more than 100 Nav,
it is automatically split into two new piles.
Instead, if the value of pile is lower, it is not split, then there is also
another mechanism start, that is little known, the dust collection.
When this happen, other piles are searched for that belong to the same address
of kernel pile and which have not staked from several time,
and if found, they can be collected together until they reach a figure
of about 1000 Nav.
This useful mechanism tends to recover the "dust coin pile" that due to
the split have become too small to be able to produce on their own
a new stake.
So, the strategy to split the "piles" in many different addresses, would
interfere with this recovery mechanism, and solitary pile too small could
end up not ever produce one stake or only after long time.
Fortunately, whether the pile are small or large, whether they produce
a stake after a short time, or after a long time, when staking they still
produce each a fair interest of around 5%, according to its age.
Of course, apart from these automatic mechanisms, can always be intervene
manually via the coin control, to subdivide or to aggregate in other sizes the
piles, and send-back them to own address.
Considering all this, many strategies are possible, which can be more or less
valid according to the own habit and figures in the field.
IMHO, Everyone should experience them personally, to develop the one that
suits him best.