Perhaps you should try some spelling variations:
yuan lang » yuan kang, yuan wang, yuan chang
lang lang » ylang ylang
sang minh » kang minah, anh minh, song min
lang zhu » liang zhu, fang zhou, gang zhou
zhu rene » zhu ren
yang jun » pang jun, yang jin, yang judy
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: yuan lang lang zhu rene ((sang minh) OR (((yang jun) OR (yang jui)))) wong yue ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yuan lang lang zhu rene ((sang minh) or (((yang jun) OR (yang jui)))) wong yue ;~".
• Adding a wildcard symbol may retrieve word variants: yuan lang lang zhu rene ((sang minh) or (((yang jun) OR (yang jui)))) wong yue ;*.