Now I understand there's been some topics about this already, but I haven't swiped through enough suggestions to know this has been suggested before.
My suggestion is to change the APH search engine to Google's Custom Search service.
Since the current engine has obviously some trouble with searching with relative keywords, I think CSE would be one of the best options.
Here's an example. Go to APH and search for S.W.A.T.
You should get only one result. Why? Because the search leaves the dots out.
Then, go to google, search "site:[u]www.arcadeprehacks.com s.w.a.t[/url]".
You should get all 4 S.W.A.T. games.
More accurate.