Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, chen zheng
yiqian wang » yijiang wang, liqin wang, qian wang
yidan wang » qian wang, yan wang, yuan wang
eng zhang » eng hong
min hong » amin hong, tin hong, min hyoung
hong zhi » zhong zhi, hong ghi, zhang zhi

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yidan wang) or (yiqian wang)) chan ((eng zhang) or (cheng zhang)) min hong zhi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yidan wang) OR (yiqian wang)) chan ((eng zhang) OR (cheng zhang)) min hong zhi ;.
• Adding a wildcard symbol may retrieve word variants: wang ((yidan wang) or (yiqian wang)) chan ((eng zhang) or (cheng zhang)) min hong zhi ;*.