Perhaps you should try some spelling variations:
ram mohon » ram mohan, ram john
mohon roy » cohen roy, mon roy
raja ram » raja ravi, raja m, raja r
a cohen » _ cohen, j cohen, b cohen
m cohen » _ cohen, j cohen, b cohen

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 mohon roy ) OR ( raja ((a cohen) OR (m cohen)) roy )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( raja ram mohon roy ) or ( raja ((a cohen) OR (m cohen)) roy ))".
• Adding a wildcard symbol may retrieve word variants: (( raja ram mohon roy ) or ( raja ((a cohen) OR (m cohen)) roy ))*.