Generalize knowledge across multiple documents

I created a chat via platform.openai.com. It uses GFT-4 turbo preview. I have uploaded multiple documents to it. The knowledge is scattered across different docs.

The behavior I get is the assistant answers questions based on doc chunks. It does not connect dots between docs which, in my usecase, renders it almost completely useless.

Is there an easy way to improve upon it? I would like to ask questions like “Based on the reference document, what are the mentions of terms from it in the remaining docs?”.