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