Perhaps you should try some spelling variations:
yuan wang » yan wang, yuan kang, yuan chang
yang zili » yang dali, yang li
david ian » david a
yang iii » klang iii, zwang iii, yang di
reform a » reform _
david ng » david g, david a, david _
david n » david a, david _, david k

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: yuan wang ((yang iii) OR (yang zili)) reform a ((david ian) OR (((david ng) OR (david n)))) hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yuan wang ((yang iii) or (yang zili)) reform a ((david ian) or (((david ng) OR (david n)))) hai ;~".
• Adding a wildcard symbol may retrieve word variants: yuan wang ((yang iii) or (yang zili)) reform a ((david ian) or (((david ng) OR (david n)))) hai ;*.