Perhaps you should try some spelling variations:
ahsan syed » khan syed
khan sher » han shen, khan syed
yan kang » yuan kang, yan wang, yang yang
than she » than one, than we, can she
chan eng » chan fong, chan kang, chan ming
eng hung » eng hong, dang hung, fung hung
hung zhi » zhang zhi, zhong zhi, wang zhi
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan kang ((((khan sher) or (than she))) or (ahsan syed)) chan eng hung zhi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan kang ((((khan sher) OR (than she))) OR (ahsan syed)) chan eng hung zhi ;.
• Adding a wildcard symbol may retrieve word variants: wang yan kang ((((khan sher) or (than she))) or (ahsan syed)) chan eng hung zhi ;*.