Perhaps you should try some spelling variations:
roman transport » romania transport, road transport, human transport
transfer auf » transfer a, transfer als, transfer f
transfer aus » transfer als, transfer hubs, transfer a
demand asa » demand case, demand data, demand east
dem roman » der roman, de roman, diem romani
aus dem » aus der
luis a » luis f, luis c

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 dem roman transport demand asa ) OR ( luis a data ((transfer auf) OR (transfer aus)) a ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( aus dem roman transport demand asa ) or ( luis a data ((transfer auf) OR (transfer aus)) a ))~".
• Adding a wildcard symbol may retrieve word variants: (( aus dem roman transport demand asa ) or ( luis a data ((transfer auf) OR (transfer aus)) a ))*.