Perhaps you should try some spelling variations:
hyoung kong » hong kong
zhang jing » zhang ming, zhang jin, zhang ping
der kein » der klein, der kern, der kleine
der keim » den keim, der kern, der kamm
wong siu » wong shiu, kong siu, wong sau
hong yu » wong yue
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang hyoung kong ((der kein) OR (der keim)) zhang jing ((wong siu) or (hong yu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang hyoung kong ((der kein) OR (der keim)) zhang jing ((wong siu) OR (hong yu)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang hyoung kong ((der kein) OR (der keim)) zhang jing ((wong siu) or (hong yu)) ;".
• Adding a wildcard symbol may retrieve word variants: wang hyoung kong ((der kein) OR (der keim)) zhang jing ((wong siu) or (hong yu)) ;*.