Or for this task, tiddlywiki is difficult to implement, and I am afraid that it will also require the use of third-party natural language processing tools
I suppose the issue is the content needs to be in your wiki, but if that is the case perhaps you are looking for a fuzzy search rather than a literal one?
The full answer really involves knowledge of the whole language, so in many ways you may want the content ingested by an LLM. I believe this is possible on some LLM platforms.