Perhaps you should try some spelling variations:
zhang minh » zhang ming, chang min, sang minh
wang yuan » wang yuhan, wang yan, fang yuan
yuan wang » yan wang, yuan kang, yuan chang
zhang xin » zhang jian, zhang ming, zhang fan
zhong zhi » hong ghi, zhong tai
zhang zhi » wang zhi, zhang wei, zhang dai
hua ren » hua chen

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 wang hua ren ((zhang minh) or (zhang xin)) ((zhong zhi) OR (zhang zhi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuan wang hua ren ((zhang minh) OR (zhang xin)) ((zhong zhi) OR (zhang zhi)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yuan wang hua ren ((zhang minh) or (zhang xin)) ((zhong zhi) OR (zhang zhi)) ;".
• Adding a wildcard symbol may retrieve word variants: wang yuan wang hua ren ((zhang minh) or (zhang xin)) ((zhong zhi) OR (zhang zhi)) ;*.