Looking at Search Engine Relevancy
The leading search engines look to provide the most relevant results to a searchers query, however complicated or simple the search query may be. The process involved for each search engine in the provision of these search results is entirely down to their own respective search algorithms. No one can be sure what these are, although the SEO community try to understand and work these out, it’s highly likely the algorithms will never be fully understood.
However, perhaps the key metric of relevance is how well you actually solve the problems that your audience are experiencing. If your content answers a query in an effective manner, then you are delivering precisely the sort of user experience that search engines want to promote.