Databases might have different interfaces but they have similar functionality:
AND: Use AND between search terms to reduce the number of results by including more than one concept, e.g. teen AND pregnancy.
OR: Use OR between search terms to increase the number of results by including synonyms for a concept, e.g. (teen OR adolescent).
" " Use quotation marks to search for a phrase, in the exact order you type it, e.g. “health care reform”.
* Use an asterisk to search for multiple versions of a word, e.g. obes* will allow you to search for obesity and obese.
