Perhaps you should try some spelling variations:
some prescriptions » some prescription, some descriptions, one prescription
tcm prescriptions » tcm prescription, test prescriptions, _ prescriptions
2 prescription » 12 prescription, 21 prescription, 22 prescription
dnf formulae » dnf formulas, cdnf formulas, cnf formulas
2c receipts » c receipts, 25 receipts, 2.2 receipts
2f early » 20 early, 21 early, 22 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 %dnf formulae%2c receipts%((2 prescription) OR (((tcm prescriptions) OR (some prescriptions)))) %2f early works to 1800%22.
• Adding a wildcard symbol may retrieve word variants: %22medicine %dnf formulae%2c receipts%((2 prescription) or (((tcm prescriptions) or (some prescriptions)))) %2f early works to 1800%22*.