Perhaps you should try some spelling variations:
well zhang » well than
zhang ming » zhang xin
lanka how » land how, lane how, lanka p.w
how well » how we
cong seo » hong seo, cong shu, von seo
cong sun » cong shu, cong van, wing sun
wan yan » wang yan, nan yan, wai yan

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan yan lanka how well zhang ming ((cong seo) OR (cong sun)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yan lanka how well zhang ming ((cong seo) OR (cong sun)) ;".
• Adding a wildcard symbol may retrieve word variants: wan yan lanka how well zhang ming ((cong seo) OR (cong sun)) ;*.