How do you chat with someone that gives very short or simple replies?

I want to really get to know this girl I matched with, but can't really get through to her. I can talk about many things and expand on interests and everything, I can ask her questions too but her replies are always

"Yeah, same" , "Fair enough" and "ok"

I feel so lost with the chat. She has an interesting profile so wanted to get to know more, but she replies, just doesn't really open up about anything at all