Perhaps you should try some spelling variations:
von sprach » von sprache, von sprachen
wang wang » wang liang, wang yan, wang yong
wang yang » wang yan, wang liang, wang yanling
von sach » von fach, von sa, von sam
yang yu » yang yue, yang yun, yang yi
yu chen » yu cheng, yi chen, yulu chen
yang xi » yang yi, yang jui
sar » sara, star, saur

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang wang yang yu chen ((yang xi) or (yang di)) ((((von sach) OR (von sprach))) or (kong sar)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang wang yang yu chen ((yang xi) OR (yang di)) ((((von sach) OR (von sprach))) OR (kong sar)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang wang yang yu chen ((yang xi) or (yang di)) ((((von sach) OR (von sprach))) or (kong sar)) ;*".