Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
klang iii » klang die
zwang iii » zugang iii
de david » die david, wade david, dawe david
david ng » david g, david n, david a
yang yi » yang xi, yang jui
form de » form der, form des, form die
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 yi)) form de david ng hai ;~.
• Adding a wildcard symbol may retrieve word variants: yang yang ((((((klang iii) or (yang di))) or (zwang iii))) or (yang yi)) form de david ng hai ;*.