Perhaps you should try some spelling variations:
zheng quan » zheng xuan, zheng alan
yuan wang » yuan kang, yuan chang, qian wang
zheng nan » zheng alan, zheng xuan
yan wang » yang yang, qian wang, yan liang
hua chen » jui chen, yu chen, a chen
kong sek » kong weak, kong sar, kong k
yan hua » tan hua, ya hua, wang hua

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

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