Perhaps you should try some spelling variations:
mohon roy » cohen roy
raja mam » raja m
mam kwon » lam kwok, kim kwon, tam kwok
kwon ho » kwon o, koon ho, kwon go
mon roy » von roy, kwon roy
raja o » raja _, raja j, raja m

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