Perhaps you should try some spelling variations:
2c prescriptions » tcm prescriptions, _ prescriptions, 2 prescription
new receipts » best receipts, _ receipts
2f formulae » 20 formulae, dnf formulae, 2.8 formulae
2 formulae » 20 formulae, _ formulae, 2 formulas
c receipts » _ receipts, all receipts, iii receipts
ef early » f early, sf early, self 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))%((c receipts) OR (new receipts))%2c prescriptions %ef early works to 1800%22.
• Adding a wildcard symbol may retrieve word variants: %22medicine %((2f formulae) or (2 formulae))%((c receipts) or (new receipts))%2c prescriptions %ef early works to 1800%22*.