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

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

• Performing a fuzzy search may retrieve terms with similar spellings: yan wang yang der reformen der ((((david ng) OR (david n))) or (david a)) hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yan wang yang der reformen der ((((david ng) OR (david n))) OR (david a)) hai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yan wang yang der reformen der ((((david ng) OR (david n))) or (david a)) hai ;*".