Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
gene bank » gene banks, one bank, genomen bank
gene anh » gene one
i human » 2 human, 3 human, 1 human
congo a » congo _, congo 2, congo 4
congo 1 » congo 11, congo _, congo 2
yang i » yang di, yang xi, yang yi

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 i human ((gene anh) or (gene bank)) minh ((hong seo) or (((congo a) OR (congo 1)))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang yang i human ((gene anh) OR (gene bank)) minh ((hong seo) OR (((congo a) OR (congo 1)))) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang yang i human ((gene anh) or (gene bank)) minh ((hong seo) or (((congo a) OR (congo 1)))) ;".
• Adding a wildcard symbol may retrieve word variants: yang yang i human ((gene anh) or (gene bank)) minh ((hong seo) or (((congo a) OR (congo 1)))) ;*.