I have been reading a bit up on how Google rank sites. Specifically the things that affect rank other than the biggest one (i.e. who links to you, and how much weight do they carry through others linking to them). So that leaves content, structure, title, url, correct meta information and so on. I have been playing a bit around with these things, and this one thing, in particular, bugs me:
Website XX contains the exact text "foo bar bazet". If I search for "foo bar baz" XX shows up as item #3 on page #1, but if I search for "foo bar bazet" (now with the surfix "et") then XX ends up as item #8 on page #3. Almost all of the sites that through this change in query is ranked better doesn't actually contain the exact text "foo bar bazet", so how come they suddenly get a higher rank than XX? If anything shouldn't XX benefit from this?
I am fully aware that there are very good reasons for this. I just want to know what they are.