That's why I miss pre-Google search engines such as AltaVista and alltheweb. "If you searched for "some obscure string of words" you would only get results that matches that exact string. I really don't like how Google just chooses to vary the spelling of your query when a match isn't found. I often search for electronics components using their part number. I'll type in something like "P204PPX" (a random code I just made up) and despite there being no match Google still gives me pages of results that are nowhere near what I was looking for.

And the worst thing is that this is all done to keep those ad dollars flowing. Look at how many companies always have a paid advert associated with their name when a search is made. They are paranoid about losing rank due to Google fiddling their algorithm or someone else doing a better SEO job using their brand.