Perhaps you should try some spelling variations:
yunnan china » urban china, yunnan sheng
tuan china » can china, taiwan china
kyung joon » kyung woo, seung joon
joon shang » joon chang
wen kyung » lee kyung, han kyung, jin kyung
shang hai » shang kai, dang hai, chang ha
wang » wing, wan, lang

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 xiaodong ((((wuhan china) OR (tuan china))) OR (yunnan china)) wen kyung joon shang hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang xiaodong ((((wuhan china) OR (tuan china))) or (yunnan china)) wen kyung joon shang hai ;~".
• Adding a wildcard symbol may retrieve word variants: wang xiaodong ((((wuhan china) OR (tuan china))) or (yunnan china)) wen kyung joon shang hai ;*.