Perhaps you should try some spelling variations:
mohan roy » mohan r, mohan rai, roman roy
mohon roy » cohen roy, mon roy
r mohon » _ mohonk, r morton
r mohan » _ mohan
m mohon » m mohan, m moxon, m morton
raja r » raja _, raja j
raja m » 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 r mohon roy ) OR ( raja r mohan roy ))) OR ( raja m mohon roy ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( raja r mohon roy ) OR ( raja r mohan roy ))) or ( raja m mohon roy ))*".