*Add an asterisk as a placeholder for any unknown or wildcard terms.
Example: "digital holo* microscope"

ORFind pages that might use one of several words.
Example: green OR blue

ANDFind pages that must contain all the words.
Example: green AND blue

NOTFind pages that contain a keyword but not another specified keyword.
Example: green NOT blue
Note: The NOT operator cannot be used with just one word. For example, the following search will return no results.
Example: NOT blue

"When you put a word or phrase in quotes, the results will only include pages with the same words in the same order as the ones inside the quotes.
Example: "robotics technology"