Had a similar problem when googling ruby 1.9.2 slow snow leopard, since that describes the problem I had. There was no auto-correct, but somehow they decided to highlight the word low in the search results (which may or may not mean that the rankings were screwed as well). I guess slow is just the plural of low. Because of the s, you know. I mean, seriously, if there aren't enough relevant results with the word slow in them, why include a completely unrelated word?