Perhaps you should try some spelling variations:
zhang yuxin » zhang yuqin, zhang yixin, zhao yuxin
jane chen » jean chen, jie chen, kang chen
shang hai » shang kai, dang hai, chang ha
tan chen » tan cheng, ta chen, jean chen
yang jin » yang jun, ying jin, shang jin
yang jie » yang di, yang jui, 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: zhang yuxin ((tan chen) OR (jane chen)) tan ((yang jin) OR (yang jie)) shang hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "zhang yuxin ((tan chen) OR (jane chen)) tan ((yang jin) or (yang jie)) shang hai ;~".
• Adding a wildcard symbol may retrieve word variants: zhang yuxin ((tan chen) OR (jane chen)) tan ((yang jin) or (yang jie)) shang hai ;*.