If you received money in your PayPal account and you subsequently want to make purchases directly with your PayPal account (rather than withdrawing to a bank) then you need to find stores that accept PayPal. Here is a list of just a few of the stores that accept PayPal.
Bid or Buy
Beyond these store, as a general rule, most software stores tend to accept PayPal.
The above list is provided in an attempt to assist, but may be out of date. Please confirm by visiting the store website to ensure that they currently accept PayPal and that they deliver to your location.