Perhaps you should try some spelling variations:
china zhang » china chang, cheng zhang, chin chang
wang xiuyan » wang xinyan, wang xuan
wang yuhan » wang luhang, wang yan, wang yidan
yan phong » tan hong, can hong, hai phong
di china » did china, ii china, d china
fang di » yang di, fang ri, wang di
cong » congo, long, hong

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) or (wang yuhan)) fang di china zhang ((yan phong) OR (yan cong)) shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang xiuyan) OR (wang yuhan)) fang di china zhang ((yan phong) OR (yan cong)) shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang xiuyan) or (wang yuhan)) fang di china zhang ((yan phong) OR (yan cong)) shu ;*".