Perhaps you should try some spelling variations:
yang yang » wang yang
gene bank » gene banks, one bank, genomen bank
bank amin » banks amid, bank aid, bank api
amin hong » min hong, among hong, tin hong
hong ghi » zhong zhi, hong g, hong hai
yi hua » li hua, ya hua, ying hua
yi hui » li hui

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) OR (wang yan))) or (wang yanling)) ((yi hua) or (yi hui)) gene bank amin hong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yang yang) OR (wang yan))) OR (wang yanling)) ((yi hua) OR (yi hui)) gene bank amin hong ghi ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yang yang) OR (wang yan))) or (wang yanling)) ((yi hua) or (yi hui)) gene bank amin hong ghi ;".
• Adding a wildcard symbol may retrieve word variants: ((((yang yang) OR (wang yan))) or (wang yanling)) ((yi hua) or (yi hui)) gene bank amin hong ghi ;*.