Perhaps you should try some spelling variations:
diligence preparation » evidence preparation, science preparation, intelligence preparation
stock diligence » utmost diligence
c 1873 » c 1870, 1 1873, 5 1873
_ 1873 » _ 1870, _ 1875, _ 1878
_ 1893 » _ 1898, _ 1890
east » fast, easy

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: east india stock diligence preparation ((c 1873) OR (((_ 1873) OR (_ 1893)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "east india stock diligence preparation ((c 1873) or (((_ 1873) OR (_ 1893))))".
• Adding a wildcard symbol may retrieve word variants: east india stock diligence preparation ((c 1873) or (((_ 1873) OR (_ 1893))))*.