Perhaps you should try some spelling variations:
ahsan syed » khan syed
wang yuhan » wang luhang, wang yan, wang yidan
yuhan kai » yuan kai
khan sher » han shen, khan syed, than she
chan fong » chew fong, chan eng, chan kang
chung zhi » chen zhi, chung h, zhang zhi
chung chi » chung h

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 kai ((khan sher) or (ahsan syed)) chan fong ((chung zhi) OR (chung chi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuhan kai ((khan sher) OR (ahsan syed)) chan fong ((chung zhi) OR (chung chi)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yuhan kai ((khan sher) or (ahsan syed)) chan fong ((chung zhi) OR (chung chi)) ;".
• Adding a wildcard symbol may retrieve word variants: wang yuhan kai ((khan sher) or (ahsan syed)) chan fong ((chung zhi) OR (chung chi)) ;*.