There are two ways to search the Samsung Support site. The first, and easiest method, is to "search by model number". If you do not know your model number, you can use the "search by product category" method.
Search by model number
Input the model number of the product you wish to search and click the search button.
Search by product category
First, select the product group your product belongs to. Then choose the product type your product belongs to. Next, depending upon the category selected, you might have to choose a product sub-type. Lastly, choose your model from the list.