Perhaps you should try some spelling variations:
china zhang » china chang, cheng zhang, chin chang
wang yuhan » wang luhang, wang yidan, fang yuan
zhang ming » zhang xin
je china » je chin, ke china, use china
kong yam » kong sar
wang je » wang he, wang ke, wang wei
hong » long

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yuhan) or (wang yan)) wang je china zhang ming ((kong yam) or (hong w)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yuhan) OR (wang yan)) wang je china zhang ming ((kong yam) OR (hong w)) ;.
• Adding a wildcard symbol may retrieve word variants: ((wang yuhan) or (wang yan)) wang je china zhang ming ((kong yam) or (hong w)) ;*.