Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
irene han » irene a
yang hua » wang hua, yang hui, ying hua
han minh » han min, tuan minh, chan ming
yang xi » yang di, yang yi, yang jui
cong yu » rong yu, chong yun, cong shu
hong yu » wong yue

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: wang yang ((yang hua) OR (yang xi)) irene han minh ((cong yu) OR (hong yu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang ((yang hua) or (yang xi)) irene han minh ((cong yu) OR (hong yu)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang ((yang hua) or (yang xi)) irene han minh ((cong yu) OR (hong yu)) ;*.