Perhaps you should try some spelling variations:
wuhan china » tuan china, yunnan china
zhang xiao » zhang xiabo, zhong xiao, zhang xiaobo
xiao zhang » xiabo zhang, hao zhang, jia zhang
liang tan » liang dan, liang sun, wing tan
tan zhang » yan zhang, tang zheng, tan hong
zhang dai » zhang fan, zhang wei, zhang yan
han hua » tan hua, wang hua, tuan hua

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 ((han hua) OR (wuhan china)) tan zhang xiao zhang dai ;~.
• Adding a wildcard symbol may retrieve word variants: liang tan ((han hua) or (wuhan china)) tan zhang xiao zhang dai ;*.