Google Scholar's "Cited by" feature is a powerful tool to help you expand your search.
Use this tool once you've found a couple of articles or books that really meet your needs. Enter the name and author of that great article/book into Google Scholar to find the citation, then click on the "Cited by" link.
This will generate a new Scholar search results list containing all the articles and books that cited the article you already like! This is a great way to expand your search sideways from literature you already know is relevant.
Bonus tip: You can narrow your search within that new list of related material by clicking the "Search within citing articles" and adding new keywords.
Clicking "Related articles", beside Cited by, will similarly yield a new list of relevant material. The articles shown are selected based on Google's relevancy algorithm.
Google Scholar offers a variety of advanced search features, including searching by title, author, or publication.
To access these features:
For complete information see Advanced Scholar Search Tips.
