Use the word "AND" to combine your keywords to make your search more specific. eg. substance abuse AND domestic violence
Use synonyms and alternative terms Related terms - broader or narrower - will also bring up relevant results. eg. teenagers | adolescents | youth
Use Truncation "*" to search for words with common roots without entering them individually. eg. searching for teen* retrieves teen, teens, teenaged, teenagers
You can limit search results in many databases to academic/peer-reviewed journals, by publication date, or text-text only.