Just letting everyone know the YT search engine works flawlessly now and it's better than it's ever been!
There were ongoing issues with it in the past but they have been fixed and greatly improved.

The best added feature is you can now find/search threads with common 3 letter words (that was never possible before) such as ARB, TJM, OME, SAS, 4x4, 1st, 2nd, 3rd, CEL, TRD, etc...
Just use the Advanced Search page and select Titles Only.

You can also find threads that were posted within the same day when before, it only found threads posted weeks or months old.

Try it out and see for yourself. The search engine has officially been supercharged. Enjoy.