Perhaps you should try some spelling variations:
chen sang » chen yang, chen shuang, chen rong
chen wang » chen yang, chen rong, chen ping
lang yan » wang yan, wang yang, zhang yan
min wong » min hong, minh cong, amin hong
wong siu » wong shiu, kong siu, wong sau
yan yaa » yang yao, nana yaa, yan yuan
yaa hua » ya hua

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yan yaa hua ((chen sang) OR (chen wang)) min wong siu ;~".
• Adding a wildcard symbol may retrieve word variants: lang yan yaa hua ((chen sang) OR (chen wang)) min wong siu ;*.