Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan fang » yin fang
wei wing » wei qiang, li wing, wei bin
wei wang » wei yang, wen wang, wei shang
wei ming » wei yiming, wei qiang, ie ming
a china » 2 china, 3 china, 1 china
4 china » 2 china

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 yidan fang ((a china) OR (4 china)) zhang ((((wei wing) OR (wei wang))) OR (wei ming)) sun ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yidan fang ((a china) or (4 china)) zhang ((((wei wing) OR (wei wang))) or (wei ming)) sun ;~".
• Adding a wildcard symbol may retrieve word variants: wang yidan fang ((a china) or (4 china)) zhang ((((wei wing) OR (wei wang))) or (wei ming)) sun ;*.