Perhaps you should try some spelling variations:
der reformen » der reform
reformen der » formen der, reform der
david dang » david mant, david ng
wang yang » wang yan, wang liang, wang yanling
david ian » david n
yan wang » yuan wang, yang yang, qian wang
yang der » gang der, yang dean, klang der

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