Perhaps you should try some spelling variations:
wang xiaotong » wang xiaodong, wang xianodong, wang xiaoping
zhang cheng » zhang chendi, chang chen, hong cheng
weng fang » jing fang
jie zhang » jia zhang, li zhang, bin zhang
zhang han » zhang fan, zhang yan, zhang hanmo
wen wang » wei wang, chen wang, men want

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang xiaotong zhang cheng ((weng fang) or (wen wang)) jie zhang han ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang xiaotong zhang cheng ((weng fang) OR (wen wang)) jie zhang han ;*.