Perhaps you should try some spelling variations:
last think » last thing, last things
wang ying » wang yang, wang yong, wang ning
wang jing » wang ning, wang liang, wang yang
last thin » last thing, last things
zeng doug » jeng dong, zeng douglas
doug sin » dong sin
yang xi » yang di, yang yi, yang jui

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 ying) OR (wang jing)) yang xi ((last thin) OR (last think)) zeng doug sin ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang ying) OR (wang jing)) yang xi ((last thin) or (last think)) zeng doug sin ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang ying) OR (wang jing)) yang xi ((last thin) or (last think)) zeng doug sin ;*.