Perhaps you should try some spelling variations:
mohan rai » mohana rao, milan rai, mohan r
cohen roy » cohen jody, cohen guy
r mohan » _ mohan
m cohen » _ cohen, j cohen, b cohen
raja r » raja _, raja j
raja m » raja _, raja j

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 r mohan rai ) OR ( raja m cohen roy )).
• Adding a wildcard symbol may retrieve word variants: (( raja r mohan rai ) or ( raja m cohen roy ))*.