Perhaps you should try some spelling variations:
ngosong think » ngos think
john ngosong » john song
huang yang » huang ying, huang chang, wang yang
boon chong » boon siong, joon chang
ying john » king john, young john, ying jin
yang jie » yang jin, yang di, yang xi
yang jui » yang judy, yang di, yang xi
hoi ying » li ying

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: ((huang yang) OR (boon chong)) ((yang jie) OR (yang jui)) hoi ying john ngosong think ;~.
• Adding a wildcard symbol may retrieve word variants: ((huang yang) or (boon chong)) ((yang jie) or (yang jui)) hoi ying john ngosong think ;*.