Good day. "Axes" would mean the directions or main lines that their discussion would take. I don't really see what the word "thrusts" would suggest in this context. A "thrust" is a physical effort inteded to push an object forward. It can be used as a verb : He thrust his fist forward. It can also be used as a noun : We could feel the thrust of the wind as the storm approached. Let's see what others say?
I would not use either of those words like that, but I would understand if either was used by someone else. Usually, I would refer to "the main topics", "the main points", "the highlights", or even "the gist."
I would say axes is never used in english for this idea, focus would be the word.
Thrust is sometimes used in English, but the thrust of a discussion- (angle is another word sometimes used) is not the topic discussed- It is the underlying intention that develops from the speaker's way of presenting the idea. So world leaders don't discuss a thrust... political pundits do.
Lordess- I'm sorry- it's me again. I offered you alternatives that were not for multiple topics. In official and business meetings with several things to do or discuss- we speak of the agenda (list of things to cover)
"Thank you for coming to the meeting, we have a lot on the agenda so I am going to try to move this along smoothly."