Perhaps you should try some spelling variations:
prescriptions many » prescriptions early, prescriptions a, prescriptions body
prescription maps » prescription law, prescription fees, prescription chap
prescription map » prescription law, prescription _, prescription iv
prescription a » prescriptions a, prescription _, prescription 4

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((((prescription maps) OR (prescription a))) OR (prescription map))) OR (prescriptions many)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((prescription maps) OR (prescription a))) or (prescription map))) or (prescriptions many))".
• Adding a wildcard symbol may retrieve word variants: ((((((prescription maps) OR (prescription a))) or (prescription map))) or (prescriptions many))*.