Perhaps you should try some spelling variations:
david dang » david ian, david mant, david ng
wang yang » wang yan, wang liang
yang dali » yang di, bang dai, yang all
die david » de david, dawe david, time david
yang iii » klang iii, yang zili, zwang iii
form die » formel die, formen die, former die
hai » hadi, haji, hari

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) OR (wang yanling)) ((yang iii) OR (yang dali)) form die david dang hai ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang yang) or (wang yanling)) ((yang iii) or (yang dali)) form die david dang hai ;*.