Perhaps you should try some spelling variations:
yong yang » yang yang, ying yang, kyoung yang
dong yang » dong hoang, wang yang, yang yang
chen ming » cheng ming, chan ming, chen jing
chen ping » chen rong, chen yang, chen wang
wong siu » wong shiu, kong siu, wong sau
von sach » von fach, von sprach, von sa
di li » li li

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yong yang) or (dong yang)) di li ((chen ming) OR (chen ping)) ((wong siu) or (von sach)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yong yang) OR (dong yang)) di li ((chen ming) OR (chen ping)) ((wong siu) OR (von sach)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yong yang) or (dong yang)) di li ((chen ming) OR (chen ping)) ((wong siu) or (von sach)) ;*".