Perhaps you should try some spelling variations:
china chang » chin chang, china zhang, china changqi
than china » tuan china, han china, wuhan china
dan china » can china, han china, dan china's
chang yan » zhang yan, chang yun, wang yan
qian yan » qian jun, qian yi
feng hui » wang hui, feng fei, feng i
tong hui » wang hui

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