Before you start your search, try to compile a list of potential keywords. This is always a good idea, but it is beneficial for conducting investigations in a field such as BUSINESS, which has many correlating topics.
Pro Tip - Once you have found a source perfect for your writing assignment, look at that book or article's sources. The author has completed a lot of research on the subject. Using the already-researched items is a great way to work smarter, not harder.
Another Tip - Use the filters on your searches. These will appear on the left side of your screen after your initial search. You can refine your searches by content type, discipline, publication date, etc.