SEO is so annoying, I recently searched "Is XYZ healthy?", then just some blogs/lifestyle magazines/whatever showed up, just written in an absolutely verbose manner. I would have expected Yes/No, not 4 paragraphs introduction, some about the advantages, some about the disadvantages and so on.
I wouldn't expect that to work any better than the other example someone quoted above, where a search for "nice restaurants" returned restaurants in Nice. Put some more thought into your queries. Like most tools, what you get out of a search engine is largely a reflection of what you put into it.