What if Black plays ...Ne8 and ..Qc7 etc? Also, Black will attack on the queenside, so if you move the dark bishop to say h2 to support the advance, then the b2 pawn will becomes weak.

I agree that 9...Nh5 is not that bad, but I have my ways of dealing with it, and I must say that although the positions I can may be equal, I like them.

But I am not sure how to deal with ...Ne8. Black attempts to play ...Ne5. If White takes the knight, then after ...dxe5 and ...Nd6, Black has an excellent position IMHO.

In the second variation, after I aim for e5, Black does not have to take and can just move back, for example e5 Ne8. I am not very sure what to do after this. And yes, after a5, Black can play b5 followed by attacking on the weak b-pawn. And for ...Ba6, I don't think it is very good because it is just aiming at the c4 pawn, which is protected by my bishop on d3

I would like to ask about two variations.

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. h3
O-O 9. Bd3 a6 10. a4 Qe7 11. O-O Nbd7 12. Re1 Ne8

What should White play after this? I checked my database and it has 4 games, and White played 13.Bg5 in all of them. However, I am not sure whether there are better moves available and would like to hear some comments.

Another variation is:

1. d4 c5 2. d5 d6 3. c4 Nf6 4. Nc3 g6 5. e4 Bg7 6. Nf3 O-O 7. Bd3 Na6 8. h3 Nc7
9. O-O a6

I get very annoyed by this variation. I am not sure what the plan is. If I play e5, Black can just move the knight to e8, and I cannot see a good continuation. Can I hear some comments about this?

Thanks in advance.