Perhaps you should try some spelling variations:
gases transfer » mass transfer, based transfer, gas transfer
transport dft » transport data, transport du, transport der
transport de » transport der, transport des, transport du
transfer a » transfer _, transfer 3, transfer 4
areas las » areas law, areas case, areas cash
guide a » guide _
a gases » _ gases, f gases, 35 gases
a co » _ co

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: (( areas las ideas ((transport dft) OR (transport de)) _ ) OR ( guide a gases transfer a co ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( areas las ideas ((transport dft) OR (transport de)) _ ) or ( guide a gases transfer a co ))~".
• Adding a wildcard symbol may retrieve word variants: (( areas las ideas ((transport dft) OR (transport de)) _ ) or ( guide a gases transfer a co ))*.