Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
yan liang » yang liang, wang liang, you liang
dong hua » wang hua, dong hoi, dong xu
tong hui » wang hui
pang jun » yang jui
yang jin » yang jie, yang jun, ying jin
wang yue » wong yue, wang hua, wang yan

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 (yan liang)) ((dong hua) or (tong hui)) rene ((pang jun) or (yang jin)) wang yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (yan liang)) ((dong hua) OR (tong hui)) rene ((pang jun) OR (yang jin)) wang yue ;.
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (yan liang)) ((dong hua) or (tong hui)) rene ((pang jun) or (yang jin)) wang yue ;*.