Nouns from your research question turn into keywords.
How does automation in the cockpit impact human performance?
AND is used in most databases to ensure that each term is present somewhere in the search results: cockpit AND automat*
The asterisk (*) is a symbol which allows for variant word endings: automat*=automatic, automation, etc.
Quotes are used to indicate that the words enclosed must be searched as a phrase: "human performance”
OR is used between terms to indicate that either term is acceptable: VR OR "virtual reality"
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