Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, yang yang
hua irene » hua ren
irene yan » irene a, ren yan
yang yaa » yang yao, yang yang, yang maha
hong shu » cong shu, tong shui, wong shiu
wong yue » wang yue, hong yu
yaa hua » ya hua
yan thi » yan zhi, tran thi, dang thi

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong yang yaa hua irene yan thi ((hong shu) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang yaa hua irene yan thi ((hong shu) OR (wong yue)) ;.
• Adding a wildcard symbol may retrieve word variants: dong yang yaa hua irene yan thi ((hong shu) or (wong yue)) ;*.