General tips that work in almost any search box:

Quotation marks search for an exact phrase. For example, the phrase, medical error, without quotations retrieves results with those two words anywhere in the document. With quotations,  "medical error,"  finds results for that exact phrase;

An asterisk (*) searches for all endings to a word at the same time. For example, mexic*, searches for Mexico, Mexican, and Mexicans.

Web Search Tips

Keep it simple! Start by typing the name of a thing, place, or concept that you are looking for.

Add relevant words if you do not retrieve pertinent results.

Try words that a website would use to describe what you are looking for.

Use only nouns rather than a full sentence or question.

Generally, all of the words that you include in your search will be used to find matching content. Too many words will limit your results.