1.Use quotation marks (" ") to retrieve an exact match.
2.Plus sign (+) in front of your search term guarantees that every document contains that term. A minus sign (-) in front of a term ensures that every document returned does not include that term.
3.To search not only for your search term but also for its synonyms, place the tilde sign (~) immediately in front of your search term.
4.To find pages that include either of two search terms, add an uppercase OR between the terms.