Incomplete concept extraction

[Linz1248]

Thank you for your work, it has been of great help to me! Now I have encountered a problem. I want to extract a concept from a document, and even if the document contains multiple related concepts, usually only one will be returned. For example, when a document contains multiple headings, I would like to extract all the headings, but the result returned is only one of them. What could be the reason for this, and is there any way to improve it?

[SergiiShcherbak]

@Linz1248 Please open an issue and provide more information on your extraction pipeline, ideally with pasted code, so it's easier to understand what the issue is.