Perhaps you should try some spelling variations:
wang yidan » wang yan
ahsan syed » khan syed
yidan kai » yuan kai
chan tang » chan kang, chan eng, chan fong
tang chun » wang chun, tung chung, kang chen
than she » khan sher, than one, than we
chun chi » chung chi, chin chin, chi chi

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 kai ((than she) or (ahsan syed)) chan tang chun chi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yidan kai ((than she) OR (ahsan syed)) chan tang chun chi ;.
• Adding a wildcard symbol may retrieve word variants: wang yidan kai ((than she) or (ahsan syed)) chan tang chun chi ;*.