Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
sang minh » kang minah, song min, song ming
shang hai » shang kai, dang hai, chang ha
wan yang » wang yang, dan yang, tan yang
xi irene » _ irene, i rene, ii rene
hong hai » zhong tai, dang hai, hong tan
yang xi » yang di, yang yi, yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan yang yang xi irene ((sang minh) or (anh minh)) ((hong hai) OR (shang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yang yang xi irene ((sang minh) OR (anh minh)) ((hong hai) OR (shang hai)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yang yang xi irene ((sang minh) or (anh minh)) ((hong hai) OR (shang hai)) ;".
• Adding a wildcard symbol may retrieve word variants: wan yang yang xi irene ((sang minh) or (anh minh)) ((hong hai) OR (shang hai)) ;*.