Perhaps you should try some spelling variations:
"philanthropism" » "philanthropinism", "philanthropismus", "philanthrophist"
"philanthropos" » "philanthropy"
"philanthropists" » "philanthropys"
"philanthropist" » "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 "philanthropos") OR "philanthropist") OR "philanthropic")).
• Removing quotes may allow a broader search: ( philanthropists or ((( philanthropism or philanthropos ) or philanthropist ) or philanthropic )).
• Adding a wildcard symbol may retrieve word variants: ("philanthropists" or ((("philanthropism" or "philanthropos") or "philanthropist") or "philanthropic"))*.