Before you search, consider the fundamental requirements of the information you seek:
What is your topic? Are there multiple terms to describe it? Use to search a specific topic, OR look for your topic (or similar terms) under the 'Topic' filter in the "Refine my results" toolbar of One Search.
What kinds of sources are required? Check your assignment prompt and set up Advanced Search to display specific formats of information such as books, journal articles, videos, etc. You can also apply the filters from the "Refine my results" toolbar.
Must your sources be peer-reviewed? Look for the term "peer-reviewed" in your results list, OR filter your results to display only articles from peer-reviewed journals.
How recent must your sources be? Three to seven years is a general window for recent sources. Sciences will be shorter. Use the left toolbar to limit the years for which your source must be published.