If you're looking for a database to quickly find a few articles, try these ones first. They are general databases that are broad in content, but do not cover as much as indepth content as the subject-specific databases (e.g. databases specifically designed to cover history articles, or environmental articles).
Databases are how articles are indexed (it just tells you that articles exist). The databases below are primarily full-text, which means that you can get actual text of the article. Some of them may contain SOME full-text. The full list of WU database is available by alphabetic list, subject, or type of resource. There are also guides available to walk you through how to find materials.