Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, chen zheng
wang yuan » wang yuhan, fang yuan, wang xuan
yang yuan » fang yuan, yang yun, wang yuhan
zhang tin » zhang tian, zhang ting, zhang xin
yan yuan » yan guan, fang yuan, nan yan
tin hong » tan hong, kia hong, thi hong
hong hai » shang hai, zhong tai, dang hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yuan) or (wang yan)) ((yang yuan) OR (yan yuan)) cheng zhang tin hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yuan) OR (wang yan)) ((yang yuan) OR (yan yuan)) cheng zhang tin hong hai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yuan) or (wang yan)) ((yang yuan) OR (yan yuan)) cheng zhang tin hong hai ;*".