Perhaps you should try some spelling variations:
zhang yuhui » zhang hui
von sprach » von sprache, von sprachen
yang jui » yang judy, yang di, yang yi
von sach » von fach, von sa, von sam
yang xi » yang di, yang yi
yan ji » yan jiu, ban ji, pan ji
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 yan ((zhang yuhui) or (((yang jui) OR (yang xi)))) ren yan ji ((von sach) or (von sprach)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan ((zhang yuhui) OR (((yang jui) OR (yang xi)))) ren yan ji ((von sach) OR (von sprach)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan ((zhang yuhui) or (((yang jui) OR (yang xi)))) ren yan ji ((von sach) or (von sprach)) ;*".