Is it possible that you have imported a private key sometime in the past?
Those are not included in the seed.
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I have a csv file with private keys. Can i use it ?

Everyone, i told again and again : i'm sure about my seed and my password. When i use my seed, i recover a wallet with nothing on it, but there is two btc adress who i used in "adress".

And i had the same problem on multibit. I recovered my wallet but there was nothing on it.
Here is the same. I recover my wallet but there is nothing on it.

So , my old wallet won't work with my actual password and when i recover it, there is nothing on it.
I hope i m clear.