The key to searching for information is to create a good search expression. A good search expression includes words that are unique to your research topic and avoids common words that may appear throughout the publication and may be unrelated to your research topic.
First, you need to think about your research topic and identify unique words that make up your research question.
Next, you need to construct an expression using these words — that is, a keyword, a string of keywords related to your question, or an exact phrase.
Next, if you are searching by citation, be sure that you enter the complete citation in the word search box.
Finally, keep in mind that when you search using Search Tools, you have many options on how you would like your search terms to appear within a document. See Adding power to your search: Search Tools
See also:
Avoiding noise words in your search expression