Perhaps you should try some spelling variations:
chan kang » chung kang, chan eng, chan fong
chan ming » kian ming, chan eng, chan fong
jui chen » yi chen
wong siu » wong shiu, kong siu, wong sau
yu cheng » yu chen, _ cheng
yuan kai » yuan kang, yuan fei, tan kai
yan ka » yang ka

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

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