Perhaps you should try some spelling variations:
anhang hans » anhang das, anhang dank, anhang anhang
duong van » duong anh
dan yang » daun yang, wang yang, yang yang
tan yang » tan ying, tan yong, tao yang
cong van » congo can, cong sun
hans p » hans k, hans j
einem » eine, einer, eines

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

• Performing a fuzzy search may retrieve terms with similar spellings: einem anhang hans p ((dan yang) or (tan yang)) jiu ((cong van) OR (duong van)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: einem anhang hans p ((dan yang) OR (tan yang)) jiu ((cong van) OR (duong van)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "einem anhang hans p ((dan yang) or (tan yang)) jiu ((cong van) OR (duong van)) ;*".