You found an article that's perfect for you. Make sure you do a few things before you print the article out to read. Read the article's ABSTRACT. Is it what you really need? Do you understand it? Make sure it's going to give you the information you need.
Second, use the article record to find other keyword or search terms. Under SUBJECTS or KEYWORDS, there'll be a list of subjects related to your article. Try searching with a few of those terms.