Perhaps you should try some spelling variations:
chong boon » cheng boon, chor boon, ong boon
chen chong » chen chung, chung chong, chen rong
boon chong » boon siong, joon chang
wang yang » wang yan, wang liang, wang yanling
yang jin » yang jie, yang jun, ying jin
yang jui » yang judy, yang di, yang yi
yang xi » yang di, yang yi
chong c » chang c, chong _, chong en
a chen » ta chen, _ chen, n chen
ngo 1 » nao 1, ngo _, ngo a

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((((wang yang) or (yang jin))) or (((yang xi) or (yang jui))))ngo 1 a chen chong boon chong c ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((wang yang) OR (yang jin))) OR (((yang xi) OR (yang jui))))ngo 1 a chen chong boon chong c ;.
• Adding a wildcard symbol may retrieve word variants: ((((wang yang) or (yang jin))) or (((yang xi) or (yang jui))))ngo 1 a chen chong boon chong c ;*.