Try three strategies to help you refine your results. These strategies work in Google, Google Scholar, and in library databases.
Research question: How do sleep habits affect college student's academic success?
Key concepts: sleep habits, college students, academic success
Search: "sleep habits" AND college AND ("academic success" OR "student success")
A search engine providing access to both freely available and subscription based resources including articles, theses, books, preprints, abstracts, conference proceedings and technical .
A multidisciplinary database with full text content in the arts, social sciences, humanities and sciences.
Use OR to broaden your search.
For example, if you search advertising OR commercials, you will find articles that include either term.
Use AND to narrow your search.
For example, if you search advertising AND commercials, you will only find articles that include both terms.
Use NOT to exclude results with certain words.
If you search advertising NOT commercials, you will find articles that include the word advertising except for those that also include the term commercials. In Google, use a minus sign instead of NOT (e.g. advertising -commercials).
Use quotation marks to search for a phrase (two words or more).
Use a truncation symbol (the asterisk * is the most common) to look for different word endings.
You do have to be careful with truncation. Sometimes you might get unexpected results.
Note: Truncation isn't recognized in Google Scholar. Google Scholar will find various word endings.