Perhaps you should try some spelling variations:
"raja mam mohon roy" » "raja ram mohan roy", "raja mam cohen roy", "raja m mohon roy"
"raja o kwon roy" » "raja o kwon o", "raja o kwon go", "raja o kwon ho", "raja _ kwon roy", "raja j kwon roy", "raja m kwon roy"
"raja a mon roy" » "raja a von roy", "rajan a mon roy", "rajah a mon roy", "raja _ mon roy", "raja a monk roy", "raja a mono roy", "raja a man roy"

You may be able to get more results by adjusting your search query.

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