Perhaps you should try some spelling variations:
transport code » transport mode, transport modes, transport model
sea transport » road transport, bus transport
transfer a » transfer _, transfer 3, transfer der
transfer 4 » transfer _, transfer 3, transfer der
case sea » case s0, case sub
bias due » bias die, bias der, bias des
due cash » does cash, idle cash, due care

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 case sea transport code _ ) OR ( bias due cash ((transfer a) OR (transfer 4)) a ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( areas case sea transport code _ ) or ( bias due cash ((transfer a) OR (transfer 4)) a ))~".
• Adding a wildcard symbol may retrieve word variants: (( areas case sea transport code _ ) or ( bias due cash ((transfer a) OR (transfer 4)) a ))*.