May 2, 2022 · You can use Boolean operators such as AND, OR, and NOT alongside keywords to create a Boolean string that will refine your search to find the most relevant results and sources.

Nov 15, 2024 · Boolean logic (named after mathematician George Boole) is a system of logic to designed to yield optimal search results. The Boolean operators, AND, OR, and NOT, help …

Oct 16, 2023 · Learn how to use Boolean operators for precise searches and effective source integration. Explore AND, OR, NOT operators with examples for enhanced research skills.

Jun 5, 2024 · Boolean operators are the words and symbols used to narrow or expand a search on a database. Examples of Boolean operators include “AND,” “OR,” and “NOT.”

Oct 23, 2025 · For example, heart AND lung AND bypass AND artery will provide a more focused search than heart AND lung OR bypass OR artery. To make even better use of Boolean …

Sep 10, 2025 · There are three Boolean Operators: AND: All keywords must appear in your results. AND will narrow down a search. OR: Either of the keywords must appear in the …

Dec 11, 2025 · One of the basic techniques for searching is using the Boolean Operators. Boolean searching is a symbolic logic system that creates relationships between concepts and …

By using the Boolean operators AND, OR, and NOT (sometimes expressed as AND NOT) between search words, a researcher can focus or broaden a search query to create sets of …

Dec 11, 2025 · Boolean operators tell databases exactly how you want your search terms combined for the optimal results. There are only five Boolean operators and all library …

May 27, 2025 · Boolean operator searches can be simple, e.g., Moose AND Elk; Moose NOT Elk. Or they can be more complex and nuanced when combining operators and use parentheses, …