Perhaps you should try some spelling variations:
mohan roy » mohon roy, mohan r, mohan rai
cohen roy » cohen jody, cohen guy
raja ram » raja ravi, raja r
raja roy » raja r
m cohen » _ cohen, j cohen, b cohen
raja m » raja _, raja j, 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 ram) OR (raja roy)) mohan roy\") or (\"raja m cohen roy\"))".
• Removing quotes may allow a broader search: (( ((raja ram) or (raja roy)) mohan roy ) or ( raja m cohen roy )).