Browsing recent referrers a while ago, as I'm wont to do when I'm (1) awake at 03:00 and (2) geeky.
My site—specifically, this entry from Feb 07, 2004—is the first result from this query. As usual, there's a little explanatory note atop the results informing me that "with" is a common term and was not included in the search.
So for kicks (I already mentioned my geekiness), I ran the search as beer headaches, and I got a different set of results. Many of the hits are the same, but the order of the results is wildly different. On this search, my site's the 18th result returned.
Seems odd to me that inclusion of a word Google claims to be ignoring as it runs its search would give such a markedly different order of returned results.