Perhaps you should try some spelling variations:
diligence preparation » evidence preparation, science preparation, intelligence preparation
diligence redemption » diligence education, diligence definition
a 1893 » 1 1893, 2 1893, 4 1893
_ 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 redemption) OR (diligence preparation)) ((a 1893) OR (_ 1893)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "east india stock ((diligence redemption) or (diligence preparation)) ((a 1893) OR (_ 1893))".
• Adding a wildcard symbol may retrieve word variants: east india stock ((diligence redemption) or (diligence preparation)) ((a 1893) OR (_ 1893))*.