Perhaps you should try some spelling variations:
transfer systems » transport systems, transit systems
nees transfers » net transfers, des transfers, arms transfers
transfers have » transfers made
gene transfer » wire transfer, heat transfer, file transfer
have acao » have also
luis c » luis f
c gene » _ gene, a gene, e gene
luis a » luis f
a nees » a needs, a need, a news

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( luis c gene transfer systems across ) OR ( luis a nees transfers have acao ))~.
• Adding a wildcard symbol may retrieve word variants: (( luis c gene transfer systems across ) or ( luis a nees transfers have acao ))*.