Perhaps you should try some spelling variations:
2c prescriptions » tcm prescriptions, _ prescriptions, 2 prescription
2 formulae » 20 formulae, _ formulae, 2 formulas
25 formula » 2 formula, _ formula, a formula
c receipts » _ receipts, new receipts, all receipts
1720 early » 1727 early, 1820 early, 1770 early
5 formula » 5 formulae, c formula, 2 formula
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 %((2 formulae) OR (((25 formula) OR (5 formula))))%c receipts%2c prescriptions %((2f early) OR (1720 early)) works to 1800%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22medicine %((2 formulae) or (((25 formula) OR (5 formula))))%c receipts%2c prescriptions %((2f early) or (1720 early)) works to 1800%22".
• Adding a wildcard symbol may retrieve word variants: %22medicine %((2 formulae) or (((25 formula) OR (5 formula))))%c receipts%2c prescriptions %((2f early) or (1720 early)) works to 1800%22*.