What are Boolean operators used for in a keyword search?

Boolean operators are vital tools in a keyword search because they enable users to effectively combine search terms to produce more relevant search results. Using operators like AND, OR, and NOT allows searchers to refine their queries. For instance, using "AND" narrows the search by requiring both terms to be present in the search results, while "OR" broadens the search to include results that contain either term. "NOT" helps eliminate unwanted terms from the results. This strategic combination of terms helps users tailor their search to find the most pertinent information, making Boolean operators essential for searching databases, academic resources, and the internet efficiently.