Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yale » yang yang, yang yao, yang all
hua irene » hua ren
chang won » chang soon, chang ann, chang min
yale hua » yale nus, ya hua
hong shu » cong shu, tong shui, wong shiu
wong yue » wang yue, hong yu

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 yale hua irene chang won ((hong shu) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yale hua irene chang won ((hong shu) OR (wong yue)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yang yale hua irene chang won ((hong shu) or (wong yue)) ;*.