Perhaps you should try some spelling variations:
china's transport » africa's transport, india's transport
transport data » transport demand
cost transfer » cast transfer, court transfer, cash transfer
use cost » user cost, user costs, use case
data cma » data can, data car, data chi
bus use » bus users
luis 3 » luis f, luis c, luis e
luis a » luis f, luis c

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

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