Perhaps you should try some spelling variations:
transfer david » transfer asia, traveler david
gene transfer » wire transfer, heat transfer, file transfer
yang zili » yang dali, yang li
young chi » young child, young hr, young kutchi
yang iii » klang iii, zwang iii, yang di
wang » wing, wan, lang
choi » cho

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 iii) or (yang zili)) gene transfer david ((young chi) OR (young choi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan ((yang iii) OR (yang zili)) gene transfer david ((young chi) OR (young choi)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan ((yang iii) or (yang zili)) gene transfer david ((young chi) OR (young choi)) ;*".