Perhaps you should try some spelling variations:
china chang » chin chang, china zhang, china changqi
tuan china » wuhan china, can china, taiwan china
than china » han china, wuhan china, can china
chang yang » chen yang, wang yang, zhang yan
yang muxi » yang jui, yang xi, yang mu
yang hui » yang jui, wang hui, zhang hui
qian » ian, kian, jian

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: qian jun ((tuan china) OR (than china)) china chang yang ((yang hui) OR (yang muxi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "qian jun ((tuan china) or (than china)) china chang yang ((yang hui) OR (yang muxi)) ;~".
• Adding a wildcard symbol may retrieve word variants: qian jun ((tuan china) or (than china)) china chang yang ((yang hui) OR (yang muxi)) ;*.