Perhaps you should try some spelling variations:
transfer david » transfer asia, traveler david
gene transfer » wire transfer, heat transfer, file transfer
david young » david loundy
yang zili » yang dali, yang li
young chi » young choi, young child, young hr
yang iii » klang iii, zwang iii, yang di
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 iii) or (yang zili)) gene transfer david young chi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan ((yang iii) OR (yang zili)) gene transfer david young chi ;*.