Perhaps you should try some spelling variations:
land transport » road transport
transfer 3 » transfer 4, transfer a, transfer 3.2
demand may » demand a, demand gap, demand mbale
user cost » user costs
bus user » bus users, bus use, bus usb
luis c » luis f
c land » 1 land, 2 land, 4 land

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( bus user cost ((transfer 3) OR (transfer _)) can ) or ( luis c land transport demand may ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( bus user cost ((transfer 3) OR (transfer _)) can ) OR ( luis c land transport demand may ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( bus user cost ((transfer 3) OR (transfer _)) can ) or ( luis c land transport demand may ))*".