Most search engines and databases search "words anywhere" or
"keywords" automatically unless you select another type of search.
Keyword searching finds matches for your terms in any field of a record
or any part of a Web page, so you will typically retrieve more
information with less precision. This is known as "recall" searching
because it focuses on recalling as much information as possible.
Databases and search engines may allow searching in specific fields
such as author, title, url (Web address), or subject and will sometimes
refer to this as "advanced," or "expert" searching. These searches will
typically retrieve less information with more precision. This is called
"precision" searching because it focuses on finding only precisely what