You can create complex search strategies by combining keywords using the linking words AND, OR and NOT. For example, if your search terms are prejudice and individual:
AND Narrows and focuses the search results. The search prejudice and individual will bring only results where both the terms prejudice and individual are present.
OR Broadens the search results. Using or will bring results where the term prejudice is present, or results where individual is present, or results where both terms are present. Or is useful if you have more than one way to refer to a concept -- Example: (prejudice or discrimination).
NOT Excludes anything where the term after the NOT is present.
The use of quotation marks around a group of words indicates a specific phrase such as "systemic racism"