why doesn't the forums/database just use Google custom search instead . Like i am pretty sure there is a plugin that allows you to integrate that into the site .
The current search engine is horrible . There have been many situations where people have ported games that already have been ported because the search engine failed to display the game they seeked
What sometimes people do is while in the forums, they search for a game, and then only the topics for that game show up, no ports.
You have go go over to the PDB and search there for the game to find it, or click the button in the search field to pick the place you want to search, forums, tutorials, port database.
Getting all results from all modules mixed together would be less than optimal, google' search would be far worse. (plus google can't index everything here, as some things are permission based.)
Only sites that have no search or a very primitive implementation use google search.