Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
sang minh » kang minah, anh minh, song min
chang min » zhang ming, chang mae, chan ming
yang zhi » wang zhi, yan zhi, liang zhi
hong ghi » zhong zhi, hong g, hong hai
zhi li » zhi ji

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 yang zhi li ((sang minh) or (chang min)) hong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yang zhi li ((sang minh) OR (chang min)) hong ghi ;*.