Perhaps you should try some spelling variations:
wang yiqian » wang yidan
yiqian wang » yijiang wang, liqin wang, qian wang
cheng zhang » cheng han, zhen zhang, china zhang
chen zheng » chen zhen, chen aizheng, chen zhe
zhong zhi » zhang zhi, zhong tai
wang ban » wang yan, wang dan, wang yang
hong ghi » hong g, hong 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 yiqian wang ban ((cheng zhang) OR (chen zheng)) jian ((zhong zhi) or (hong ghi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yiqian wang ban ((cheng zhang) OR (chen zheng)) jian ((zhong zhi) OR (hong ghi)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yiqian wang ban ((cheng zhang) OR (chen zheng)) jian ((zhong zhi) or (hong ghi)) ;".
• Adding a wildcard symbol may retrieve word variants: wang yiqian wang ban ((cheng zhang) OR (chen zheng)) jian ((zhong zhi) or (hong ghi)) ;*.