Perhaps you should try some spelling variations:
david young » david loundy
gene banks » center banks
yang zili » yang dali, yang li
zili gene » iii gene
aid young » a young, all young, apc young
yan yang » yang yang, yao yang, dan yang
wan yan » wang yan, nan yan, wai yan

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan yan yang zili gene banks ((((aid young) OR (david young))) or (kim young)) ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan yang zili gene banks ((((aid young) OR (david young))) OR (kim young)) ghi ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yan yang zili gene banks ((((aid young) OR (david young))) or (kim young)) ghi ;*".