Perhaps you should try some spelling variations:
2c prescriptions » tcm prescriptions, _ prescriptions, 2 prescription
2 formulas » _ formulas, 3 formulas, cnf formulas
2 formulae » 20 formulae, _ formulae, a formulae
c receipts » _ receipts, new receipts, all receipts
21 early » 2.1 early, 1 early, 11 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 %((2 formulas) OR (2 formulae))%c receipts%2c prescriptions %21 early works to 1800%22.
• Adding a wildcard symbol may retrieve word variants: %22medicine %((2 formulas) or (2 formulae))%c receipts%2c prescriptions %21 early works to 1800%22*.