1. Most databases have a truncation character. For many, gene* will get gene and genes and genetic and genetics, but also generally.
2. In any database (including Google) try using quotes around words you want as a phrase.
3. Use specific and technical terms in article databases. See how close you can get to 25 good results.
Remember to set up alerts in your favorite databases in order to get articles on your specific topics sent to you. For more information see the alerts guide
Journal articles contain specific and up-to-date research results or reviews. Articles are found in databases. Some that are useful in this area might be:
Provides access to records from the top journals, conference proceedings, and books in the sciences, social sciences, and arts and humanities to find the high quality research most relevant to the area of interest. Using linked cited references, subject connections between articles that are established by the expert researchers can be explored. Guide.
Contains more than 2.6 million citations and summaries of scholarly journal articles, book chapters, books, and dissertations, all in psychology and related disciplines, such as medicine, psychiatry, education, social work, law, criminology, social science, and organizational behavior, dating as far back as the 1800s. 98 percent of the covered material is peer-reviewed. Journal coverage, which spans 1887 to present, includes international material selected from more than 2,100 periodicals in more than 27 languages. Many journals are available in full-text.
If you see an article in a database and want to get it, find and click on the
icon (or possibly 
in Google Scholar).
let you know what your access options are (think of "find it"). It might
Note: You will only the Get it at UC Icon when you are on the campus network or authenticated to the campus via OpenAthens or AnyConnect VPN.