Perhaps you should try some spelling variations:
china yang » china ying, china wang, china chang
than china » tuan china, han china, wuhan china
liang tan » liang dan, liang sun, wing tan
yang xiao » huang xiao, zhang xiao, yang xi
zhang yan » zhang fan, zhang jian, wang yan
zhang ya » zhang y, zhang yi, zhang fan
tan hua » tuan hua, wang hua, tan chia

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: liang tan ((tan hua) OR (than china)) china yang xiao ((zhang ya) OR (zhang yan)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "liang tan ((tan hua) or (than china)) china yang xiao ((zhang ya) OR (zhang yan)) ;~".
• Adding a wildcard symbol may retrieve word variants: liang tan ((tan hua) or (than china)) china yang xiao ((zhang ya) OR (zhang yan)) ;*.