Perhaps you should try some spelling variations:
chung boon » cheng boon, chung woojin
chen chung » chen chuling, chen shuang, chen chuan
lang wang » hong wang, ping wang, yan wang
lang lang » ylang ylang
boon wong » boon chong, boon siong, john wong
wong yue » wang yue, hong yu
di chen » yi chen, li chen, jui chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((lang wang) or (lang lang)) yang di chen chung boon wong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((lang wang) OR (lang lang)) yang di chen chung boon wong yue ;.
• Adding a wildcard symbol may retrieve word variants: ((lang wang) or (lang lang)) yang di chen chung boon wong yue ;*.