Perhaps you should try some spelling variations:
die reformen » die reform, die formen, der reformen
iii reformen » iii formen, der reformen, und reformen
david dang » david ian, david mant, david ng
wang yang » wang yan, wang liang, wang yanling
yan wang » yuan wang, yang yang, qian wang
david ma » david a, david m, david mant

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