Perhaps you should try some spelling variations:
chen chung » chen chuling, chen shuang, chen chuan
chen chan » chen chuan, cheung chan, shen chang
kang wong » kang young
wong shiu » wong siu, cong shu, song shin
yan yuan » yan guan, fang yuan, nan yan
yan yan » nan yan, yang yang, wang yan
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yan yan) OR (yan yuan)) zi ((chen chan) or (chen chung)) kang wong shiu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan yan) OR (yan yuan)) zi ((chen chan) OR (chen chung)) kang wong shiu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan yan) OR (yan yuan)) zi ((chen chan) or (chen chung)) kang wong shiu ;*".