Perhaps you should try some spelling variations:
yang juin » yang jin, yang jun, yang judy
yulu chen » yu chen
chen wong » chen rong, chen wang, chen yong
wong chun » wang chun, fong chan, jong chan
chun wong » chung tong
yang jui » yang judy, yang di, yang xi
wong yue » wang yue, hong yu

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong ((yang jui) or (yang juin)) yulu chen wong chun wong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong ((yang jui) OR (yang juin)) yulu chen wong chun wong yue ;.
• Adding a wildcard symbol may retrieve word variants: dong ((yang jui) or (yang juin)) yulu chen wong chun wong yue ;*.