Perhaps you should try some spelling variations:
yuan cheng » yuan chang, huang cheng, yu cheng
cheng jing » chen jing, cheng bing, cheng ling
doing von » doing un, ing von
dann yuan » fang yuan, yan yuan
von dann » von dan, von dana, von daten
yang jui » yang judy, yang di, yang xi
jing ji » ying jin
yang yi » yang di, yang xi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doing von dann yuan cheng jing ji ((yang yi) or (yang jui)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doing von dann yuan cheng jing ji ((yang yi) OR (yang jui)) ;*.