Perhaps you should try some spelling variations:
171820 early » 1780 early, 1710 early, 1712 early
2010 france » 2020 france, 10 france, 2010 avance
100 france » 1500 france, 10 france, 100 francs
1720 early » 1727 early, 1770 early, 1722 early
20 france » 10 france, 20 fringe

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: %22coinage %20 law AND legislation %((20 france) OR (((2010 france) OR (100 france)))) %((1820 early) OR (((171820 early) OR (1720 early)))) works to 1800%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22coinage %20 law and legislation %((20 france) or (((2010 france) or (100 france)))) %((1820 early) or (((171820 early) OR (1720 early)))) works to 1800%22".
• Adding a wildcard symbol may retrieve word variants: %22coinage %20 law and legislation %((20 france) or (((2010 france) or (100 france)))) %((1820 early) or (((171820 early) OR (1720 early)))) works to 1800%22*.