The AND operator

You use the AND operator to combine two or more keywords/terms. When using AND, you will only retrieve information that includes both these keywords/terms. This operator will give you fewer results.

For example:

A search on the word "Anorexia" retrieved 723 results and a search on "Bulimia" retrieved 537 results.

Putting the two words together like this: Anorexia AND Bulimia, you will retrieve only documents that contain both words in each document.