Perhaps you should try some spelling variations:
chen zheng » chen aizheng, cheng zhang, chen zhe
chen zhen » chen zhe
ming wong » ming kong, ming hung, ming qing
lang yan » wang yan, wang yang, zhang yan
wong siu » wong shiu, kong siu, wong sau
yan zi » yan zhi, yuan zi
ban zi » ban ji

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 ((yuan fei) or (((yan zi) or (ban zi)))) ((chen zheng) OR (chen zhen)) ming wong siu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yan ((yuan fei) OR (((yan zi) OR (ban zi)))) ((chen zheng) OR (chen zhen)) ming wong siu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yan ((yuan fei) or (((yan zi) or (ban zi)))) ((chen zheng) OR (chen zhen)) ming wong siu ;*".