Perhaps you should try some spelling variations:
du xiaotong » du xiaodong
zhang cheng » zhang chendi, chang chen, hong cheng
cheng wei » chen wei, cheng hei, cheng siwei
jie zhang » jia zhang, bin zhang, xi zhang
wei wang » wei yang, wen wang, wei shang
li zhang » _ zhang
vie dans » vie des

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 xiaotong zhang cheng wei wang ((((jie zhang) OR (li zhang))) OR (vie dans)) (hai OR hadi) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "du xiaotong zhang cheng wei wang ((((jie zhang) OR (li zhang))) or (vie dans)) (hai or hadi) ;~".
• Adding a wildcard symbol may retrieve word variants: du xiaotong zhang cheng wei wang ((((jie zhang) OR (li zhang))) or (vie dans)) (hai or hadi) ;*.