Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yong » wang yong, yang yang, kang young
juan rene » juan rana
juan meng » jui meng, yuan ming
sang minh » kang minah, anh minh, song min
tang min » chang min, yang mind, tang li
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: wang yang yong ((juan rene) OR (juan meng)) ((tang min) or (sang minh)) wong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yong ((juan rene) OR (juan meng)) ((tang min) OR (sang minh)) wong yue ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang yong ((juan rene) OR (juan meng)) ((tang min) or (sang minh)) wong yue ;*".