Search is kinda weirdly working/notworking in my backend.

But besides that, one of my collections (Question Items) has relationship fields to another collection (Topics) and another (References) that my client would love to be able to sort/filter these items by those references.

Any addon that makes the backend search/filter more robust?

Or can anyone recommend a developer to create such an addon? I'd rather ask here than randomly goto Upwork or someother freelancer site.