Perhaps you should try some spelling variations:
wang yuan » wang yuhan, fang yuan, wang xuan
yang khan » yang dean, yang fan, yang ka
khan sher » han shen, khan syed, than she
zhang min » zhang ming, chang min, zhang jin
zhang xin » zhang jian, zhang ming, zhang fan
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 khan sher ((zhang min) or (zhang xin)) hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yuan) OR (wang yan)) yang khan sher ((zhang min) OR (zhang xin)) hong hai ;.
• Adding a wildcard symbol may retrieve word variants: ((wang yuan) or (wang yan)) yang khan sher ((zhang min) or (zhang xin)) hong hai ;*.