Check your spelling
Make sure your search terms are spelled correctly. The search engine will attempt to find words that sound similar to your search terms, but it is always best to try to spell the search terms correctly.
Use multiple words
Use multiple words when performing your search. The search results will return more refined results from several words than from a single word. For example, searching for free downloads will return more relevant results than searching only for free. Keep in mind, relevant results are returned even if they don't contain all query terms.
Don't use extraneous words
Enter only the keywords. Avoid using search phrases such as How do I write an Auto_Open sub? Rather, just search for Auto_Open.
Use similar words
The more similar words you use in a search, the more relevant results you will get back.
Use quotation marks
Use quotation marks to find words which must appear adjacent to each other, for example, "Power Utility Pak". Without the quotes, the search results will include the word power, utility, and the word pak, but not necessarily in that order (the words may appear anywhere, and in any order, within the document).
Use plus (+) or minus (-)
Use a plus sign when your search term or phrase must appear in the search results. Use a minus sign to indicate undesirable term(s). The plus sign tells the search engine that a certain word or phrase is required in the search results, and a minus sign indicates that a word or phrase must be absent in the search results.
Note: A phrase must be contained within quotation marks. Leave no spaces between the plus or minus sign and the term.
Use wildcards
Wildcard searches can expand the number of matches for a particular request. The * character is used as the wildcard character. For instance, searching for wh* will find the words what, why, when, whether, and any other word that starts with wh. Searching for *her* will find the words here, whether, together, gathering, and any other word that contains her anywhere in the word.