Perhaps you should try some spelling variations:
than china » han china, wuhan china, dan china
tuan china » wuhan china, taiwan china, yunnan china
shang kai » shang hai
dan yang » daun yang, tan yang, wang yang
li shang » li zhang, wei shang, xia shang
wan yan » wang yan, nan yan, wai yan
yang li » yang lin, yang di, yang xi

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: wan yan ((((than china) OR (tuan china))) OR (can china)) dan yang li shang kai ;~.
• Adding a wildcard symbol may retrieve word variants: wan yan ((((than china) or (tuan china))) or (can china)) dan yang li shang kai ;*.