How to use Boolean expressions in a search
For greater control over your search query, you can use a Boolean expression. If you enter the word OR between two search words (with a space between each word and the OR) it will find any record that contains either the first word or the second word or both. For example, “experience OR attitude” would find records containing the word “experience” or the word “attitude” or both.
If instead of the word OR you entered AND, it would match only records that contained both the word “experience” and the word “attitude.” Note that this would be the same as a simple search for “experience attitude” because if the Boolean commands are omitted, it defaults to assuming an AND between each search word.
To find records that do not contain a particular word, place the word NOT before it. For example, “NOT pleasure” would find all the records that do not contain the word “pleasure.” It makes sense to use this command, however, only in a combination like “attitude AND NOT pleasure,” which would find records containing the word “attitude” but not the word “pleasure.” (Note that the expression “attitude NOT pleasure” has the same meaning.)