Perhaps you should try some spelling variations:
land transport » road transport
transfer 3 » transfer _, transfer 4, transfer 3.2
transfer a » transfer _, transfer 4, transfer der
demand map » demand gap, demand may, demand gaps
use based » user based, case based, rule based
bus use » bus users
luis 1 » luis f, luis c, luis a

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: (( bus use based ((transfer 3) OR (transfer a)) can ) OR ( luis 1 land transport demand map ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( bus use based ((transfer 3) OR (transfer a)) can ) or ( luis 1 land transport demand map ))~".
• Adding a wildcard symbol may retrieve word variants: (( bus use based ((transfer 3) OR (transfer a)) can ) or ( luis 1 land transport demand map ))*.