Perhaps you should try some spelling variations:
lang xiaodong » wang xiaodong, wang xianodong, lin xiaodong
yunnan china » urban china, tuan china, yunnan sheng
wuhan china » tuan china
joon chang » hoong chang, jin chang, woo chang
boon chong » boon siong
wen kyung » lee kyung, han kyung, jin kyung

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