Perhaps you should try some spelling variations:
"raja mam mohon roy" » "raja ram mohan roy", "raja mam cohen roy", "raja mam mon roy", "raja m mohon roy"
"raja r von roy" » "raja r von rom", "raja r von roh", "raja r mon roy", "raja _ von roy", "raja j von roy", "raja m von roy", "raja 2 von roy", "raja 1 von roy"
"raja r von rob" » "raja r von robo", "raja r von rom", "raja r von roh", "raja _ von rob", "raja j von rob", "raja m von rob", "raja 2 von rob", "raja 1 von rob"

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: (("raja mam mohon roy") OR ((("raja r von roy") OR ("raja r von rob")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"raja mam mohon roy\") or (((\"raja r von roy\") OR (\"raja r von rob\"))))".
• Removing quotes may allow a broader search: (( raja mam mohon roy ) or ((( raja r von roy ) OR ( raja r von rob )))).
• Adding a wildcard symbol may retrieve word variants: (("raja mam mohon roy") or ((("raja r von roy") OR ("raja r von rob"))))*.