Besides the simple search by entering a single search term you may use the following search options:

• Keyword search: Simply enter one or more keywords and the search engine will return all pages that contain either all keywords (AND query) or at least one keyword (OR query). "match all word" selects an AND query while "match any word" selects an OR query.
• Wildcard search: By default, the search engine searches for exact keywords only. This means that a search for key will not return pages containing the words keyboard or keyword. However, if you want to search for all words that begin with key, you can add an asterisk (*) after the keyword (key* instead of key). Of course, you can also put the wildcard in front of a keyword or in the middle of a keyword.
• Phrase search: Sometimes you only need results that include an exact phrase. To narrow your results, simply put quotation marks around your search term ("comma separated" instead of comma separated) and the search engine will only return pages that contain the exact phrase.
• Forcing a keyword: This feature is particularly useful when you are searching for multiple keywords (OR query) but still want ensure that a page contains a certain keyword. To force a keyword, put a plus (+) in front of it (without space).
• Excluding a keyword: To exclude a keyword, put a minus (-) in front of it. Thus, pages containing this keyword will not be returned.