1. On the Search dropdown list, the default category is Amazon.com.
2. Change the default category to your desired category, e.g. sports.
3. If your desired category, e.g. sports, is not listed then click on See All 41 Product Categories tab.
4. A page listing all the product categories will be shown. Search for and click on your desired category, e.g. Sports & Outdoors.
5. Your chosen product category and its sub-categories will be listed in the Search dropdown list.
6. Key in the search phrase, e.g basketball, and press Enter or click on Go button.
7. Search results will be listed in the default sorting order of Relevance, i.e. products most relevant to the search terms you keyed in.
8. You may change to other sorting order such as Bestselling, New Arrivals, and On Sale.

Note: If the Search dropdown list was left was Amazon.com, then the sorting order of the search results listed could not be changed. You have to change to a specific product category in order to have the option to sort.