Perhaps you should try some spelling variations:
"raja ra_ mohan roy" » "raja ram mohan roy", "raja raj mohan roy", "raja rama mohan roy", "raja ra_ mohan r", "raja ra_ mohan rai", "raja ra_ roman roy", "raja ravi mohan roy", "raja _ mohan roy", "raja roy mohan roy", "raja _a_ mohan roy", "raja ja_ mohan roy"
"raja r mohan roy" » "raja r mohan r", "raja r mohan rai", "raja r roman roy", "raja _ mohan roy", "raja j mohan roy"
"raja m mohon roy" » "raja m mon roy", "raja m mohan roy", "raja m moxon roy", "raja m morton roy", "raja _ mohon roy", "raja j mohon roy"
"raja m cohen roy" » "raja m cohen jody", "raja m cohen guy", "raja _ cohen roy", "raja j cohen roy", "raja b cohen roy"

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