After a search term is entered, the first thing a search engine does is to assesses the search term and differentiates the nature intended of the search. It could be a map location, a video, a business listing, news, After separating it's nature it then compares the term to every other web page it has discovered over time. It compares the value it awards for the search term on each page. It then decides, using hundreds of triggers, the most relevant results to provide in a results page.