Perhaps you should try some spelling variations:
die reformen » die reform, die formen, der reformen
iii formen » ii formen, die formen, iii form
beim david » kim david
yuan wang » yuan kang, yuan chang, qian wang
yan wang » yang yang, qian wang, yan liang
david ng » david g, david n, david a

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: ((yan wang) OR (yuan wang)) yang ((die reformen) OR (iii formen)) beim david ng (hai OR hadi) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan wang) OR (yuan wang)) yang ((die reformen) or (iii formen)) beim david ng (hai or hadi) ;~".
• Adding a wildcard symbol may retrieve word variants: ((yan wang) OR (yuan wang)) yang ((die reformen) or (iii formen)) beim david ng (hai or hadi) ;*.