Perhaps you should try some spelling variations:
mohan rai » mohana rao, milan rai, mohan r
raja ram » raja ravi, raja m, raja roy
r mohan » _ mohan
r mohon » _ mohonk, r morton
raja r » raja _, raja j, raja m

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 r)) mohan rai ) OR ( raja ((r mohon) OR (r mohan)) roy )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((raja ram) OR (raja r)) mohan rai ) or ( raja ((r mohon) or (r mohan)) roy ))".
• Adding a wildcard symbol may retrieve word variants: (( ((raja ram) OR (raja r)) mohan rai ) or ( raja ((r mohon) or (r mohan)) roy ))*.