Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
zhang yung » zhang ying, zhang yan, zhang ming
chen zhang » cheng zhang, zhen zhang, chen zheng
wei yiming » wei ming
wang xuan » wang xiuyan, wang xueman, wang hua
yung chen » yun chen, yu chen, yulu chen
zhang wei » zhen wei

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang xuan) OR (wang yuhan)) zhang yung chen zhang wei yiming shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang xuan) OR (wang yuhan)) zhang yung chen zhang wei yiming shu ;*".