Perhaps you should try some spelling variations:
yulu cheng » yulu chen, yu cheng, yuan cheng
cheng ling » cheng bing, cheng ming, cheng leong
doing von » doing un, ing von
von dann » von dan, von dana, von daten
yang jui » yang judy, yang di, yang xi
ling ji » jing ji, ling li, 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 yulu cheng ling ji ((yang yi) or (yang jui)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doing von dann yulu cheng ling ji ((yang yi) OR (yang jui)) ;*.