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

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

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