If your system is set up for membership codes and expiration dates, this is how you search for a multitude of codes and expiration dates.
Go to Reports->File Search.
Under the Main 3 tab, go to Membership Codes and Expiration Dates, where you'll find four pairs of membership codes and expiration dates.
Enter the membership codes. If you enter an accompanying expiration date, the system will choose records with an expiration date ON or AFTER the expiration date entered.