Perhaps you should try some spelling variations:
yanling yang » yang yang
last things » last thing, first things, smart things
east thing » last thing, east china, best thing
ying yang » yang yang, yin yang, ying chang
zeng doug » jeng dong, zeng douglas
doug sin » dong sin
wang » wing, wan

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 OR lang) ((yanling yang) OR (ying yang)) di ((east thing) OR (last things)) zeng doug sin ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang or lang) ((yanling yang) OR (ying yang)) di ((east thing) or (last things)) zeng doug sin ;~".
• Adding a wildcard symbol may retrieve word variants: (wang or lang) ((yanling yang) OR (ying yang)) di ((east thing) or (last things)) zeng doug sin ;*.