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