The information returned by search engines in a search query really depends on the words people type into the search box. Sound simple? Bill Slawski found a patent application published last week where the search engine asks if it should convert acronyms and abbreviated queries to include results from the non-abbreviated version.
Slawski demonstrates the difference in search results by highlighting a few examples, such as searching on Bing for NASA Moon bombing vs. National Aeronautics and Space Administration moon bombing. He provides some advice that marketers building keyword lists may want to consider.