Perhaps you should try some spelling variations:
transport tvdft » transform tvdft
sea transport » road transport, bus transport
das transfer » gas transfer, cash transfer, data transfer
areas coal » areas can, areas co
transfer 3 » transfer _, transfer 4, transfer a
coal sea » coal seam, coal seams, coal use
guide a » guide _
a das » 1 das, 2 das, 3 das
3 ao » 3 a, 3 co, 3 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 sea transport tvdft _ ) OR ( guide a das transfer 3 ao ))~.
• Adding a wildcard symbol may retrieve word variants: (( areas coal sea transport tvdft _ ) or ( guide a das transfer 3 ao ))*.