The site command limits your search to authoritative (trusted) sites:
Just add site:.domain at the end of your search(.edu, .gov or .org).
Example: cyberbullying site:.org (NO spaces between site: and the domain.)
To find an exact phrase, add quotation marks around a phrase:
Examples: "animal rights" "mental health" "school choice"
Compare commercial websites (.com) with government, educational, and organizational websites (.gov, .edu, .org). Here are some evaluation methods:
Grammar and Usage
Writing and Composition