Perhaps you should try some spelling variations:
dong hoang » hong hong
yang yang » wang yang, wang yan
ying yang » yin yang, ying chang, wang yang
hui ying » huei ying, hoi ying, hui ping
yang guo » yang jui, yang jun, yang yao
guo ming » guo jing, guo xin, guo feng
ming shu » ming shih, cong shu, ming lu
yi hui » li hui

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang yang) or (dong hoang)) yi hui ying yang guo ming shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (dong hoang)) yi hui ying yang guo ming shu ;*.