Perhaps you should try some spelling variations:
dong hoang » hong hong
dong yang » wang yang, yang yang, dan yang
hua irene » hua ren
irene yan » irene a, ren yan
wong shiu » cong shu, song shin, wong sau
wong siu » kong siu, wong sau, wong siew
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) or (dong hoang)) ya hua irene yan thi ((wong shiu) OR (wong siu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong yang) OR (dong hoang)) ya hua irene yan thi ((wong shiu) OR (wong siu)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong yang) or (dong hoang)) ya hua irene yan thi ((wong shiu) OR (wong siu)) ;".
• Adding a wildcard symbol may retrieve word variants: ((dong yang) or (dong hoang)) ya hua irene yan thi ((wong shiu) OR (wong siu)) ;*.