Perhaps you should try some spelling variations:
wang xiuyan » wang xinyan, wang xuan
xiuyan wang » xiulan zhang
change wai » change wi, change what, change why
wai chung » lai chung
chung shu » cong shu, chung chi, chung h
3 china » 2 china, 3 china's
4 china » 2 china

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang xiuyan wang ((3 china) OR (4 china)) change wai chung shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang xiuyan wang ((3 china) OR (4 china)) change wai chung shu ;*.