it is great that you are working on it, but IMO the results are far from decent.
For example, search for “Why can’t Unity”, even check searching in titles only. Imo it is pretty obvious that I should see the topic: Why can't Unity HDRP correctly render AAA looking character models?
instead I am getting:
Besides that I noticed one difference when it comes to the Search. It is a lot slower now 
EDIT: it works as expected if I put everything inside the " " so I believe it is the right thing to do for such cases. So there is an improvement after all! 