Perhaps you should try some spelling variations:
yunnan china » urban china, tuan china, yunnan sheng
wuhan china » tuan china
dong wing » dong ping, dong sin, dong bin
dong sind » dong sin, dong bin, dong ping
rural thi » rural tax
kim eung » kim young, kim song
thi kim » thi diem

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: ((dong wing) OR (dong sind)) ((wuhan china) OR (yunnan china)) rural thi kim eung (thin OR than) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong wing) or (dong sind)) ((wuhan china) or (yunnan china)) rural thi kim eung (thin OR than) ;~".
• Adding a wildcard symbol may retrieve word variants: ((dong wing) or (dong sind)) ((wuhan china) or (yunnan china)) rural thi kim eung (thin OR than) ;*.