Perhaps you should try some spelling variations:
yuan cheng » yuan chang, huang cheng, yu cheng
wang yuan » wang yuhan, wang yan, fang yuan
shang kai » shang hai
wan ming » kian ming, chan ming, yuan ming
ran ying » fan ying, tan ying, jin ying
yang jin » yang jie, yang jun, ying jin
yang yi » yang xi, 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: ((wan ming) or (ran ying)) wang yuan cheng ((((yang jin) or (yang yi))) or (yang di)) shang kai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wan ming) OR (ran ying)) wang yuan cheng ((((yang jin) OR (yang yi))) OR (yang di)) shang kai ;.
• Adding a wildcard symbol may retrieve word variants: ((wan ming) or (ran ying)) wang yuan cheng ((((yang jin) or (yang yi))) or (yang di)) shang kai ;*.