Perhaps you should try some spelling variations:
gene sang » lee sang, gene bank
sang minh » kang minah, anh minh, song min
cong seo » hong seo, cong shu, cong sun
cong van » congo can, duong van, cong sun
yang xi » yang di, yang jui
yang yi » yang di, yang jui
a gene » a genre, a gender, a gentle

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

• Performing a fuzzy search may retrieve terms with similar spellings: yang ((yang xi) OR (yang yi)) a gene sang minh ((cong seo) or (cong van)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang ((yang xi) OR (yang yi)) a gene sang minh ((cong seo) OR (cong van)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang ((yang xi) OR (yang yi)) a gene sang minh ((cong seo) or (cong van)) ;".
• Adding a wildcard symbol may retrieve word variants: yang ((yang xi) OR (yang yi)) a gene sang minh ((cong seo) or (cong van)) ;*.