You still use the Boolean operators written in English when searching for information in Spanish.
Use OR to broaden your search.
For example, if you search advertising OR commercials, you will find articles that include either term.
Use AND to narrow your search.
For example, if you search advertising AND commercials, you will only find articles that include both terms.
Use quotation marks to search for a phrase (two words or more).
Use a truncation symbol (the asterisk * is the most common) to look for different word endings.