Perhaps you should try some spelling variations:
human transport » urban transport, rural transport, ocean transport
transport air » transport a, transport data, transport _
transfer our » transfert pour, transfer der, transfer auf
dem human » der human, des human, term human
luis dem » luis de, aus dem, luis e
luis c » luis f
c heat » c1 heat, _ heat, a heat
our a » our _, sur a
mass » maps

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 dem human transport air mass ) OR ( luis c heat transfer our a ))~.
• Adding a wildcard symbol may retrieve word variants: (( luis dem human transport air mass ) or ( luis c heat transfer our a ))*.