An easy way to refine your topic is to use Boolean operators and synonyms (words that have a similar meaning to your original word).
To find more synonyms check out the abstracts and subject terms of articles you find on your topic.
Boolean searching is the use of AND, OR, NOT to control your search results.
For example, if your professor wants you to "explore the relationship between gaming and violence", you could try this:
gaming AND violence locates only records that contain both words.
gaming NOT violence locates records that contain gaming as long as they don't include the word violence.
gaming OR violence locates records that contain one or both words.
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