Keyword Techniques: AND
When you are searching for articles and want to get fewer articles that are better focused on your topic, you can use AND to narrow the number of articles you see.
For instance, if you search for Public Health AND Policy, you will only see articles that have both keywords in them. If you add another concept (Public Health AND Policy AND Prevention), you will see even fewer results, since all articles now have to have all three keywords.
Some databases require you to capitalize AND when you write it out, so it's a good habit to get into.
