On the results page, pay attention to the total number of results
If you have many results (for example, ~10,000 or more), you can remove the kinds of results that don't match your search using the options on the left panel of the screen
Use the Source Type field to show only certain kinds of materials, such as Academic/Scholarly articles or Trade Journal articles
Use the Publication Date to limit to a specific date range, such as only articles published within the last five years
