Perhaps you should try some spelling variations:
yuan lang » yuan wang, yuan chang, yuan lin
yuan kang » yuan wang, yuan chang, chan kang
sang minh » kang minah, anh minh, song min
lang zhu » liang zhu, fang zhou, gang zhou
zhu rene » zhu ren
yang jun » yang jui, pang jun, yang jin
hong yu » wong yue

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) OR (yuan kang)) lang zhu rene ((sang minh) OR (yang jun)) hong yu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yuan lang) OR (yuan kang)) lang zhu rene ((sang minh) or (yang jun)) hong yu ;~".
• Adding a wildcard symbol may retrieve word variants: ((yuan lang) OR (yuan kang)) lang zhu rene ((sang minh) or (yang jun)) hong yu ;*.