Perhaps you should try some spelling variations:
human transport » urban transport, rural transport, ocean transport
transport fuel » transport fares
cas transfer » cash transfer, cast transfer, cash transfers
gas transfer » cash transfer, mass transfer, a transfer
vagues one » vagues de
one human » zone humans, one man, e human
fuel a » fuel _, fuel tax, fuel gas
a do » a dot, _ do, a d

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: (( vagues one human transport fuel a ) OR ( guide _ ((cas transfer) OR (gas transfer)) a do ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( vagues one human transport fuel a ) or ( guide _ ((cas transfer) OR (gas transfer)) a do ))~".
• Adding a wildcard symbol may retrieve word variants: (( vagues one human transport fuel a ) or ( guide _ ((cas transfer) OR (gas transfer)) a do ))*.