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

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 map) OR (prescription iv))) OR (prescriptions many)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((prescription map) OR (prescription iv))) or (prescriptions many))".
• Adding a wildcard symbol may retrieve word variants: ((((prescription map) OR (prescription iv))) or (prescriptions many))*.