Perhaps you should try some spelling variations:
wang liang » wang yang
wei formen » zwei formen, drei formen, der formen
formen die » formel die, former die, reformen die
liang wei » xiang wei, zhang wei, wang wei
die david » de david, dawe david, time david
yan wang » yuan wang, yang yang, qian wang
ng hai » hong hai

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 liang wei formen die david ((ng hai) OR (dang hai)) ;~.
• Adding a wildcard symbol may retrieve word variants: yan wang liang wei formen die david ((ng hai) or (dang hai)) ;*.