Most online commercial legal databases organize information, whether it be a case, a statute, or a journal article, into fields (on LexisNexis Quicklaw, they are called segments). You may not automatically see or recognize the fields when you look at the information on the screen, but you should realize the advantage of being able to search on particular fields in order to make your search results more precise. Examples include searching for cases by a particular judge, searching for cases before or after a particular date, and searching for cases involving a particular person or company.