Perhaps you should try some spelling variations:
2c prescriptions » tcm prescriptions, _ prescriptions, 2 prescription
all receipts » sale receipts, also receipts, bills receipts
2f formulae » dnf formulae, 2.8 formulae, 2.9 formulae
20 formulae » 10 formulae, 20 formula, 20 formule
2 formulae » _ formulae, 2 formulas, 2 formula
a formulae » a formula, _ formulae, a formulas
2f early » 20 early, 21 early, ef early

Try widening your search to All Fields.

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: %22medicine %((((2f formulae) OR (((2 formulae) OR (a formulae))))) OR (20 formulae))%all receipts%2c prescriptions %2f early works to 1800%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22medicine %((((2f formulae) or (((2 formulae) OR (a formulae))))) or (20 formulae))%all receipts%2c prescriptions %2f early works to 1800%22".
• Adding a wildcard symbol may retrieve word variants: %22medicine %((((2f formulae) or (((2 formulae) OR (a formulae))))) or (20 formulae))%all receipts%2c prescriptions %2f early works to 1800%22*.