Perhaps you should try some spelling variations:
wang xiuyan » wang xinyan, wang xuan
zhang yung » zhang ying, zhang ming, chang yun
chen zhang » cheng zhang, zhen zhang, chen shuang
chen zheng » chen zhen, chen aizheng, cheng zhang
wei yiming » wei ming
zhang yan » zhang fan, zhang jian, wang yan

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang xiuyan ((zhang yung) OR (zhang yan)) ((chen zhang) or (chen zheng)) wei yiming shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang xiuyan ((zhang yung) OR (zhang yan)) ((chen zhang) OR (chen zheng)) wei yiming shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang xiuyan ((zhang yung) OR (zhang yan)) ((chen zhang) or (chen zheng)) wei yiming shu ;*".