Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
klang iii » klang die
zwang iii » zugang iii
die david » de david, dawe david, time david
form die » formel die, formen die, former die
david ng » david g, david n, david a
yang li » yang lin, yang xi, yang yi
ng hai » dang 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: yang yang ((((((klang iii) OR (yang di))) OR (zwang iii))) OR (yang li)) form die david ng hai ;~.
• Adding a wildcard symbol may retrieve word variants: yang yang ((((((klang iii) or (yang di))) or (zwang iii))) or (yang li)) form die david ng hai ;*.