Perhaps you should try some spelling variations:
china zhang » china chang, cheng zhang, chin chang
wang xiuyan » wang xinyan, wang xuan
wang yidan » wang yan
hai phong » kai hong
bai chong » lai chung, wai chung, kai hong
a china » 2 china, 4 china, 3 china
fang a » fang _, lang a, facing a

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: ((wang xiuyan) OR (wang yidan)) fang a china zhang ((hai phong) OR (bai chong)) shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang xiuyan) or (wang yidan)) fang a china zhang ((hai phong) OR (bai chong)) shu ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang xiuyan) or (wang yidan)) fang a china zhang ((hai phong) OR (bai chong)) shu ;*.