Perhaps you should try some spelling variations:
hyoung gun » young eun
von sprach » von sprache, von sprachen
ren yang » ren yan, chen yang, dan yang
yang jin » yang jie, yang jun, ying jin
von sach » von fach, von sa, von sam
gun hua » gui hua, tuan hua
hua ren » hua chen
wang » wan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang OR lang) OR wing) hyoung gun hua ren yang jin ((von sach) OR (von sprach)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang or lang) or wing) hyoung gun hua ren yang jin ((von sach) OR (von sprach)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang or lang) or wing) hyoung gun hua ren yang jin ((von sach) OR (von sprach)) ;*.