Perhaps you should try some spelling variations:
reformen beim » reformen bei, reformen im, reformen teil
der reformen » der reform
beim david » kim david
yan liang » yang liang, wang liang, you liang
yang yang » wang yang, wang yan
yan wang » yuan wang, qian wang, yan zhang
david ng » david g, david n, david a
hadi » had

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) OR (yan liang))) or (yang yang)) gang der reformen beim david ng hadi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yan wang) OR (yan liang))) OR (yang yang)) gang der reformen beim david ng hadi ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yan wang) OR (yan liang))) or (yang yang)) gang der reformen beim david ng hadi ;*".