Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
gene sang » lee sang
gene bank » gene banks, one bank, genomen bank
congo can » congo call, cong van, congo a
cong sun » cong shu, cong van, wing sun
yang yi » yang di, yang xi, yang jui
yi i » yi ki, i i, ii i
minh » mind, ming, mine

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 yi i ((gene sang) OR (gene bank)) minh ((cong sun) or (congo can)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang yang yi i ((gene sang) OR (gene bank)) minh ((cong sun) OR (congo can)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang yang yi i ((gene sang) OR (gene bank)) minh ((cong sun) or (congo can)) ;".
• Adding a wildcard symbol may retrieve word variants: yang yang yi i ((gene sang) OR (gene bank)) minh ((cong sun) or (congo can)) ;*.