Perhaps you should try some spelling variations:
yang study » yang judy, arg study
study gene » study gender, study genetic, study agency
gene bank » gene banks, one bank, genomen bank
aid young » david young, kim young, all young
yan yang » yang yang, yao yang, dan yang
a young » _ young
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan yang study gene bank ((aid young) OR (a young)) ghi ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan yang study gene bank ((aid young) OR (a young)) ghi ;".
• Adding a wildcard symbol may retrieve word variants: wang yan yang study gene bank ((aid young) OR (a young)) ghi ;*.