Perhaps you should try some spelling variations:
2.1 registers » 12.1 registers, 6.1 registers, 3.1 registers
2f registers » ivf registers, 4 registers, d registers
_ registers » _ register, _ registry
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: %22%5banniversary of the charity-schools%5d %((((2f registers) OR (_ registers))) OR (2.1 registers)) %2f early works to 1800%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22%5banniversary of the charity-schools%5d %((((2f registers) OR (_ registers))) or (2.1 registers)) %2f early works to 1800%22".
• Adding a wildcard symbol may retrieve word variants: %22%5banniversary of the charity-schools%5d %((((2f registers) OR (_ registers))) or (2.1 registers)) %2f early works to 1800%22*.