The following tips will work in MOST library databases.
Boolean Operators | Example | Results | When to use |
And | "Morning glory spillway" and design | This search statement will only retrieve articles containing both the phrase morning glory spillway and the word design anywhere in the record. | To narrow a Search when you find too many items or when your search results do not address your specific topic. |
Or | "trash rack*" or "bar screen*" | Finds any articles containing either the phrase trash rack or bar screen. | To Broaden a Search When you can't find enough information or when you need to find information on a topic that can be described by different terms. |