Perhaps you should try some spelling variations:
raja hari » raja halli, raja ravi
mohan roy » mohan r, roman roy, rammohan roy
mohan rai » mohana rao, milan rai, mohan r
mohon roy » cohen roy, mon roy
raja m » raja _, raja j
raja r » 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 hari ((mohan roy) OR (mohan rai))\") or (\"((raja m) OR (raja r)) mohon roy\"))".
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"((\\"raja hari ((mohan roy) OR (mohan rai))\\") or (\\"((raja m) or (raja r)) mohon roy\\"))\"".
• Removing quotes may allow a broader search: (( raja hari ((mohan roy) OR (mohan rai)) ) or ( ((raja m) or (raja r)) mohon roy )).