Perhaps you should try some spelling variations:
mam mohon » ram mohan
mohon roy » cohen roy, mon roy
kwon ho » kwon o, kwon go, kwon h
koon ho » joon ho, yoon ho, moon how
raja o » raja _, raja j, raja r
raja m » raja _, raja j, 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 mam mohon roy ) OR ( ((raja o) OR (raja m)) ((kwon ho) OR (koon ho)) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( raja mam mohon roy ) or ( ((raja o) or (raja m)) ((kwon ho) OR (koon ho)) ))".
• Adding a wildcard symbol may retrieve word variants: (( raja mam mohon roy ) or ( ((raja o) or (raja m)) ((kwon ho) OR (koon ho)) ))*.