Perhaps you should try some spelling variations:
transfer model » transfer models, transfer money, transfer der
sea transport » road transport, bus transport
transport der » transport de, transport des, transport air
der marx » oder marx, der mark, der max
imf data » imf's data, dlf data, rdf data
luis a » luis f, luis c
1 data » 2.1 data, 3.1 data, 4.1 data
a sea » _ sea, a set

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: (( luis a sea transport der marx ) OR ( luis ((imf data) OR (1 data)) transfer model _ ))~.
• Adding a wildcard symbol may retrieve word variants: (( luis a sea transport der marx ) or ( luis ((imf data) or (1 data)) transfer model _ ))*.