Perhaps you should try some spelling variations:
philanthropists » philanthropic, philanthropics, philanthroposs, philanthropys
philanthropism » philanthropinism, philanthropismus, philanthrophist
philanthropist » philanthropic, philanthropos, philanthropy

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: ( philanthropists OR (philanthropism OR philanthropist) ).
• Adding a wildcard symbol may retrieve word variants: ( philanthropists or (philanthropism or philanthropist) )*.