Perhaps you should try some spelling variations:
yuan cheng » yuan chang, huang cheng, yu cheng
ping fang » jing fang, ping wang, ping pong
fang yuan » wang yuhan, wang yan, meng yuan
dang hadi » dang hai
tan ping » tan ying, team ping, ting ping
yang jin » yang jie, ying jin, shang jin
yang jun » yang jui, pang jun, yang judy
yang xi » yang yi, yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: tan ping fang yuan cheng ((((yang jin) or (yang jun))) or (((yang xi) or (yang di)))) dang hadi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tan ping fang yuan cheng ((((yang jin) OR (yang jun))) OR (((yang xi) OR (yang di)))) dang hadi ;.
• Adding a wildcard symbol may retrieve word variants: tan ping fang yuan cheng ((((yang jin) or (yang jun))) or (((yang xi) or (yang di)))) dang hadi ;*.