Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
chang min » zhang ming, chang mae, chan ming
hua rene » hua ren, juan rene
hong ghi » zhong zhi, hong g, hong hai
yan yan » yan yuan, nan yan, yang yang
yan hua » tan hua, ya hua, wang hua
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan yan hua rene ((sang minh) or (chang min)) hong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan yan hua rene ((sang minh) OR (chang min)) hong ghi ;.
• Adding a wildcard symbol may retrieve word variants: wang yan yan hua rene ((sang minh) or (chang min)) hong ghi ;*.