Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
dong sind » dong sin, dong bin
dong ping » dong sin, dong bin, dong jung
wang lin » wang li, yang lin, wang limin
wang qin » wang qiao, wang jing, wang ning
tong hui » wang hui
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: ((yang yang) or (((dong sind) OR (dong ping)))) ya yu chen ((wang lin) or (wang qin)) tong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (((dong sind) OR (dong ping)))) ya yu chen ((wang lin) OR (wang qin)) tong hui ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) or (((dong sind) OR (dong ping)))) ya yu chen ((wang lin) or (wang qin)) tong hui ;*".