Perhaps you should try some spelling variations:
mohan roy » mohon roy, roman roy, rammohan roy
mohan rai » mohana rao, milan rai
raja ram » raja ravi, raja r, raja roy
mohan r » mohan _, mohan j, mohan k
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 m)) ((((mohan roy) OR (mohan r))) OR (mohan rai)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((raja ram) or (raja m)) ((((mohan roy) OR (mohan r))) or (mohan rai))".
• Adding a wildcard symbol may retrieve word variants: ((raja ram) or (raja m)) ((((mohan roy) OR (mohan r))) or (mohan rai))*.