Perhaps you should try some spelling variations:
transport air » transport a, transport data, transport 2.1
transfer der » transfer fees, transfer _
du roman » der roman, _ roman, im roman
aus du » aus deut
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.

• Performing a fuzzy search may retrieve terms with similar spellings: (( aus du roman ((transport air) OR (transport _)) asa ) or ( luis a heat transfer der a ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( aus du roman ((transport air) OR (transport _)) asa ) OR ( luis a heat transfer der a ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( aus du roman ((transport air) OR (transport _)) asa ) or ( luis a heat transfer der a ))*".