When you use Access World News, choose Lead/First Paragraph from the drop down box. This should limit your search to articles where your topic is really the focus of the story.
Headline will limit your search even more, but might not give you the best results.
The database, Access World News, will let you search for newspaper articles by topic. You can search a particular paper like the Washington Post or the St Petersburg Times and you can look for articles on a subject like homeless. All the articles are available full text so that you can read the entire article. Editorials are also available.