Perhaps you should try some spelling variations:
chih shanghai » china shanghai, chen shanghai, han shanghai
city shanghai » china shanghai, chen shanghai
wang zhang » wang zheng, wang luhang, zhang zhang
zhang fang » zhang fan, zhang zhang, zhang yan
fang lin » wang lin, yang lin, huang lin
cong sun » cong shu, cong van, wing sun
hong yu » wong yue

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 zhang fang lin ((chih shanghai) OR (city shanghai)) au ((hong yu) OR (cong sun)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang zhang fang lin ((chih shanghai) OR (city shanghai)) au ((hong yu) or (cong sun)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang zhang fang lin ((chih shanghai) OR (city shanghai)) au ((hong yu) or (cong sun)) ;*.