Google has search operators just like a database. For example, if you want to search for a whole phrase, you would use quotations (“) around the phrase. If you wanted to exclude a word, you would use a dash (-) before the word. If you wanted to search a particular site or domain, you would use a colon (:). Check out this link for more information and examples of Google’s search operators.
Google has an Advanced Search page as well, which always you to enter multiple search terms and to narrow your results as well. I find the ways that Google wants to narrow your search interesting because it asks you if you want to limit by region, reading level, format, SafeSearch (to filter sexually explicit content), and more. I would really check it out and I’m considering making their Advanced Search my homepage.