Perhaps you should try some spelling variations:
data transformed » data transform, data transforms, data transforming
urban transport » road transport
transport a » transport _, transport data
dem urban » der urban, beim urban, term urban
aus dem » aus der
luis a » luis f, luis c
a asa » _ asa, δ asa

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( aus dem urban transport a asa ) or ( luis a data transformed _ a ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( aus dem urban transport a asa ) OR ( luis a data transformed _ a ))*.