Perhaps you should try some spelling variations:
roman transport » romania transport, road transport, human transport
transport data » transport demand
transfer der » transfer fees, transfer _
data asa » data data, data a, data als
aus dem » aus der
aus de » aus der, aus den, aus die
luis a » luis f, luis c
a heat » a heart, _ heat, a head
der a » der _, der e

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: (( ((aus de) OR (aus dem)) roman transport data asa ) OR ( luis a heat transfer der a ))~.
• Adding a wildcard symbol may retrieve word variants: (( ((aus de) or (aus dem)) roman transport data asa ) or ( luis a heat transfer der a ))*.