Perhaps you should try some spelling variations:
dong hoang » hong hong
dong yang » wang yang, dan yang, dong jung
yang yang » wang yang, wang yan
hua irene » hua ren
yuan ting » yuan ming, huang ting, yuan kang
ting hong » tin hong, tan hong, hong hong
hong ghi » zhong zhi, hong g, hong hai
yu chen » yu cheng, yi chen, yulu chen

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 (yang yang))) or (dong hoang)) ya ((hua irene) or (yu chen)) yuan ting hong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((dong yang) OR (yang yang))) OR (dong hoang)) ya ((hua irene) OR (yu chen)) yuan ting hong ghi ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((dong yang) OR (yang yang))) or (dong hoang)) ya ((hua irene) or (yu chen)) yuan ting hong ghi ;".
• Adding a wildcard symbol may retrieve word variants: ((((dong yang) OR (yang yang))) or (dong hoang)) ya ((hua irene) or (yu chen)) yuan ting hong ghi ;*.