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