Perhaps you should try some spelling variations:
reformen teil » reformen bei, reformen beim, reformen der
wei reformen » der reformen, den reformen, iii reformen
zhang wei » zhen wei
wan yan » nan yan, wai yan, wang yang
qian yi » qian yan
david n » david a, david _, david g
david k » david a, david _

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: ((((wan yan) OR (wang yan))) OR (qian yi)) zhang wei reformen teil ((david n) OR (david k)) w ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((wan yan) or (wang yan))) or (qian yi)) zhang wei reformen teil ((david n) OR (david k)) w ;~".
• Adding a wildcard symbol may retrieve word variants: ((((wan yan) or (wang yan))) or (qian yi)) zhang wei reformen teil ((david n) OR (david k)) w ;*.