Perhaps you should try some spelling variations:
gases transfer » mass transfer, based transfer, gas transfer
sea transport » road transport, bus transport
transport a » transport _, transport data
areas two » areas co
two sea » two sex, two step, two self
3 co » _ co, 2 co
a co » _ co

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( areas two sea transport a 4 ) or ( guias _ gases transfer ((3 co) OR (a co)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( areas two sea transport a 4 ) OR ( guias _ gases transfer ((3 co) OR (a co)) ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( areas two sea transport a 4 ) or ( guias _ gases transfer ((3 co) OR (a co)) ))*".