Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
fang khan » fang zhen
fang yuan » wang yan, meng yuan, tang yun
sher chan » shen chang, sheri chaney
zhang zhi » zhong zhi, wang zhi, zhang wei
chan min » chan ming, chang min, chan mun
hong zhi » zhong zhi, hong ghi, wang 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 yuhan ((fang khan) or (fang yuan)) sher chan min ((hong zhi) OR (zhang zhi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuhan ((fang khan) OR (fang yuan)) sher chan min ((hong zhi) OR (zhang zhi)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yuhan ((fang khan) or (fang yuan)) sher chan min ((hong zhi) OR (zhang zhi)) ;".
• Adding a wildcard symbol may retrieve word variants: wang yuhan ((fang khan) or (fang yuan)) sher chan min ((hong zhi) OR (zhang zhi)) ;*.