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

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 "philanthropic") OR "philanthropist") OR "philanthropism").
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((\"philanthropists\" OR \"philanthropic\") or \"philanthropist\") or \"philanthropism\")".
• Removing quotes may allow a broader search: ((( philanthropists OR philanthropic ) or philanthropist ) or philanthropism ).
• Adding a wildcard symbol may retrieve word variants: ((("philanthropists" OR "philanthropic") or "philanthropist") or "philanthropism")*.