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

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" OR "philanthropy")).
• Removing quotes may allow a broader search: (( philanthropists or philanthropism ) or ( philanthropist or philanthropy )).
• Adding a wildcard symbol may retrieve word variants: (("philanthropists" or "philanthropism") or ("philanthropist" or "philanthropy"))*.