Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
gene bank » gene banks, one bank, genomen bank
tan ying » fan ying, ran ying, tan yang
dan yang » daun yang, tan yang, wang yang
iii gene » iii rene, iii gender, iii genome
kim dong » kim jong, kim young, kim eung
kim song » kim young, kim eung

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((((tan ying) or (yang yang))) or (dan yang)) iii gene bank ((kim dong) or (kim song)) ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((((tan ying) OR (yang yang))) OR (dan yang)) iii gene bank ((kim dong) OR (kim song)) ghi ;.
• Adding a wildcard symbol may retrieve word variants: wang ((((tan ying) or (yang yang))) or (dan yang)) iii gene bank ((kim dong) or (kim song)) ghi ;*.