Perhaps you should try some spelling variations:
raja hari » raja ravi
mohan roy » mohan r, mohan rai, roman roy
mohon roy » mon roy
cohen roy » cohen jody, cohen guy
raja j » raja _, raja m, raja r

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 hari) OR (raja halli)) mohan roy\") or (\"raja j ((mohon roy) OR (cohen roy))\"))".
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"((\\"((raja hari) OR (raja halli)) mohan roy\\") or (\\"raja j ((mohon roy) or (cohen roy))\\"))\"".
• Removing quotes may allow a broader search: (( ((raja hari) OR (raja halli)) mohan roy ) or ( raja j ((mohon roy) or (cohen roy)) )).