Search any form of a word by taking the root of the word and adding an asterix.
Example: learn* will search learn, learner, learners, learning, etc.
Boolian Operators AND, OR,
Narrow your search using AND in between each of your keywords to find articles with all of your keywords included. The more keywords you search using AND, the fewer results you will have.
Example: violence and mass media
Broaden your search using OR in between each of your keywords to find articles with any of your keywords included. Use OR when you are searching synonyms/ similar/ related terms. The more keywords you search using OR, the more results you will have.
Example: university students or college students or undergraduates
Putting quotes around your keywords allows you to search these terms as a phrase.