Perhaps you should try some spelling variations:
jane chen » jean chen, jie chen, kang chen
shang hai » shang kai, dang hai, chang ha
chen tan » chen tain, chen yang, chen jian
yang jin » yang jie, ying jin, shang jin
yang jun » pang jun, yang judy, yang fan
yang jui » yang judy, yang di, yang xi
yuqin » yuqing, yuxin, suqin

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: zhang yuqin jane chen tan ((((yang jin) OR (yang jun))) OR (yang jui)) shang hai ;~.
• Adding a wildcard symbol may retrieve word variants: zhang yuqin jane chen tan ((((yang jin) or (yang jun))) or (yang jui)) shang hai ;*.