Perhaps you should try some spelling variations:
xiaodong zhang » xiaotong zhang, xiaodong huang
zhang cheng » zhang chendi, chang chen, hong cheng
cheng han » chen hao
wang jing » wang ning, wang liang, wang yang
yang jie » yang di, yang jui, yang xi
yang jin » yang jun, ying jin, shang jin

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: du xiaodong zhang cheng han ((wang jing) OR (((yang jie) OR (yang jin)))) dang (hai OR hari) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "du xiaodong zhang cheng han ((wang jing) or (((yang jie) OR (yang jin)))) dang (hai or hari) ;~".
• Adding a wildcard symbol may retrieve word variants: du xiaodong zhang cheng han ((wang jing) or (((yang jie) OR (yang jin)))) dang (hai or hari) ;*.