Perhaps you should try some spelling variations:
die ansatze » der ansatze
yang guang » yang yang, yan guan, yang liang
ansatze im » ansatz im, ansatze zum, ansatze zu
yan guang » yan guan, gan guan, yan liang
zhong zhi » zhang zhi, hong ghi, zhong tai
dong di » dong sin
im ji » im j
wang » wing, wan, lang

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 ((yan guang) OR (yang guang)) die ansatze im ji ((zhong zhi) OR (dong di)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan guang) OR (yang guang)) die ansatze im ji ((zhong zhi) or (dong di)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yan guang) OR (yang guang)) die ansatze im ji ((zhong zhi) or (dong di)) ;*.