Sometimes you will find a great article that is relevant for your topic. You can expand your search for additional articles in a few ways:
by looking at sources or references cited in the original article. Some databases will link to references or cited sources.
by checking which newer articles have cited the article. You can check this in databases such as Web of Science and Google Scholar:
In Web of Science, you can go to References or Related records. You can also do a Cited Reference Search that will search for newer articles that cite the article being searched.
In Google Scholar, below an article on the results list, you will see a link to Cited by which will show newer articles where the original article is cited.