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      How to use text filters?

      Boolean search is a type of search that allows you to combine keywords with operators like AND, OR, and NOT to produce more relevant results.

       These operators help you narrow down or broaden your search criteria.

       

      Basic Boolean Operators:

      1. AND: This operator narrows your search by combining two or more keywords. It retrieves pages that contain all the keywords you specify.

        • Example: "climate change" AND "policy"

      2. OR: This operator broadens your search by retrieving pages that contain at least one of the keywords you specify.

        • Example: "climate change" OR "global warming"

      3. NOT: This operator excludes pages that contain a specific keyword.

        • Example: "climate change" NOT "politics"

      Additional Tips:

      1. Parentheses: Use parentheses to group terms and control the order of evaluation.

        • Example: ("climate change" OR "global warming") AND policy

      2. Quotation Marks: Use quotation marks to search for an exact phrase.

        • Example: "climate change policy"

      3. Wildcard (*): Use an asterisk as a placeholder for unknown terms within a search phrase.

        • Example: environ* will retrieve results for environment, environmental, etc.