What's wrong with the search? It's part of vbulletin and works pretty much the same on every VB site on the 'net.
FWIW, if you want to search using Google, go to google.com and prefix 'site:discoweb.org' to your search query.
Like this: site:discoweb.org catchers mitt
I haven't checked here lately, so it might have been altered, but there's always been one thing that's bugged the immortal hell out of me when searching:
Character requirements.
Quite a few acronyms and initialisms are present in the world of vehicles. ARB, RRC, and things of that nature. The problem, however, occurs when attempting to isolate threads or ensure you find every last one of them.
D2, for example, wasn't previously accepted. That's annoying, because people like to type D2 instead of DII or Discovery II; the latter of which would still trip certain search features.
It was the three or four character requirement that was the problem. I'm not sure what it's set to now. I'm going to take a nap instead of checking.
Cheers,
Kennith