Perhaps you should try some spelling variations:
language course » language culture
trade transport » road transport, free transport, de transport
transfer risks » transfer risk
transport can » transport a, transport cost, transport data
risks across » risk across, costs across, firms across
course trade » course time, course tpack
ee transfer » free transfer, gene transfer, peer transfer
ideale und » ideal und
can co2 » ocean co2, can code, can cost
und ee » und ehe, und ed, und eg

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: (( ideale und ee transfer risks across ) OR ( language course trade transport can co2 ))~.
• Adding a wildcard symbol may retrieve word variants: (( ideale und ee transfer risks across ) or ( language course trade transport can co2 ))*.