They require that all terms appear in the exact order shown. Use AND to glue your search terms together. The Boolean AND focuses a search by retrieving only those records that contain at least one term or phrase from each concept. The capitalized form will work for all engines. Limit AND to three or fewer.
Truncation is a technique for retrieving variations in one search term.
Specify the order you want. Put keywords in order of priority. Search engines rank documents by relevance, with first query terms to be evaluated with a higher ranking. Know your limits. Most search engines provide options for limiting a search by date, url, language, title, and media.