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