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