Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
hua irene » hua ren
sang minh » kang minah, anh minh, song min
hong shu » cong shu, tong shui, wong shiu
hong ghi » zhong zhi, hong g, hong hai
yang yi » yang di, yang xi, yang jui
yi hua » li hua, ya hua, yi hui
tang » tan, lang, gang

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 yi hua irene ((tang li) OR (sang minh)) ((hong shu) OR (hong ghi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang yi hua irene ((tang li) or (sang minh)) ((hong shu) OR (hong ghi)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang yi hua irene ((tang li) or (sang minh)) ((hong shu) OR (hong ghi)) ;*.