Why do you put quotation marks around keywords when doing a search?

This will find search results with the exact phrase in quotation marks. For example, if you search for "the king of France" you will get results with the exact phrase the king of France.Leaving the quotation marks off will allow the search engine to look for links for each individual Word. That way, you will get results for anything that has France, king, of and the somewhere in the web page.