Most search engines use search term frequency as a primary way of determining whether a document is relevant. If you're researching non intrusive and the words appears multiple times in a Web document, it's reasonable to assume that the document will contain useful information. Therefore, a document that repeats your words over and over is likely to turn up near the top of your list.
Search procedure on the Web is a complex course of action and relatively or sometimes entirely different to search procedures in previous online environments. The search process does not begin by typing a search term or a well-defined or unstructured querysucha as non intrusive ,into search engines and does not come to an end by retrieval of a few relevant documents or avalanche of irrelevant retrieved items.
