Perhaps you should try some spelling variations:
transport fuel » transport fares
gas transport » mass transport, bus transport, car transport
gaz transfer » gas transfer, a transfer, far transfer
areas coal » areas can, areas co
guias de » guia de, guide de, aguas de
fuel a » fuel _, fuel tax, fuel gas
_ co » _ do

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 coal gas transport fuel a ) OR ( guias de gaz transfer ((a co) OR (_ co)) ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( areas coal gas transport fuel a ) or ( guias de gaz transfer ((a co) OR (_ co)) ))~".
• Adding a wildcard symbol may retrieve word variants: (( areas coal gas transport fuel a ) or ( guias de gaz transfer ((a co) OR (_ co)) ))*.