Too few articles

• Check for spelling errors or typos
• Use subject headings or keywords, do not use long phrases
• Try using synonyms or utilize Boolean operator “OR” to search similar concepts (For example, tests OR measure)
• If you have a good source, look at its subject headings or keywords to get search ideas for related articles

Too many articles

• Add another aspect to your search using Boolean operator “AND” (For example, post intensive care syndrome AND quality of life)
• Add limits, such as full-text, peer-reviewed, and date range

To access only scholarly articles, you should check the "peer-reviewed" option in databases.

To receive only full-text articles, check the "full-text" option (Full-text means the full article is immediately available. If you don't choose full-text articles, you may only receive a citation or abstract of an article.)

You may want to adjust the data range and only search for articles within the last 5-10 years.