Let's file this under weird or unexpected search results from Google. A search for business website design] returns one of those middle of the page Google refinements. The weird part is what Google returns as a refinement for that search. Google returns the keyword, [semi repair]. What does semi repair have to do with business website design?
Here is a picture of the page:
Why is this the case? No one really knows, but Googler JohnMu did comment in a joking fashion saying:
As I mentioned, these suggestions are generated automatically. I wonder what that tells us ... hmm :-) Someone should be out there making DIY truck repair sites!
Maybe, just maybe.
Forum discussion at Google Webmaster Help.