The rule is that mixed case querys are case sensitive, all upper or all lower case searches are case insensitive. Stemming Our search engine uses stemming to automatically include related variations of your search term. Every word in a search phrase is stemmed unless quotation marks are used. Quotation Marks Use quotation marks around your search terms to find exact matches. Use asterisks and question marks when you don't know the exact spelling of a word or want to match many words which begin the same.
Question mark replaces a single unknown character.
Asterisk matches multiple unknown characters and can broaden your search. If you are looking for an even broader range of words, asterisk will find words which are unrelated but start the same. On this page Simple Search Results Adv. The first section of the results page is reserved for a Key Site match, if one is found. Search terms in our list of common Apple topics will result in a Key Site match.