Perhaps you should try some spelling variations:
david dang » david ian, david mant, david ng
yang dali » yang di, bang dai, yang all
yan wang » yuan wang, yang yang, qian wang
yang iii » klang iii, yang zili, zwang iii
reform i » reform _, reform a, reform 1
yang li » yang lin, yang di, yang xi
i david » 2 david, die david, iii david

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 ((yang iii) OR (((yang li) OR (yang dali)))) reform i david dang (hai OR haji) ;~.
• Adding a wildcard symbol may retrieve word variants: yan wang ((yang iii) or (((yang li) or (yang dali)))) reform i david dang (hai or haji) ;*.