Perhaps you should try some spelling variations:
dong wang » dong yang, hong wang, dong hoang
wang yang » wang yan, wang liang, wang yanling
sang minh » kang minah, anh minh, song min
yang hua » wang hua, yang hui, ying hua
wei sang » wei shang, wei wang, wei yang
chen yue » chen yu, chen yun, chen yulu
hong yu » wong yue

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong wang yang hua wei sang minh ((hong yu) or (chen yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong wang yang hua wei sang minh ((hong yu) OR (chen yue)) ;*.