Perhaps you should try some spelling variations:
reformen beim » reformen bei, reformen im, reformen teil
di reformen » die reformen, der reformen, den reformen
qian wang » yiqian wang, qian rong, qian yan
david ian » david a, david n
yan wang » yuan wang, yang yang, yan liang
david g » david a, david _, david k

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