Perhaps you should try some spelling variations:
clean transport » ocean transport, urban transport, green transport
cash transfer » cash transfers
transfer 4 » transfer _, transfer 3, transfer a
luis 3.1 » louis 3.1, fluids 3.1, apis 3.1
3.1 cash » 3.1 case, 5.3.1 cash, 3.1 cases
em macro » new macro, _ macro, 2 macro
4 cacao » du cacao
a clean » _ clean, a clear
a macro » _ macro
luis a » luis f, luis c

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 3.1 cash transfer 4 cacao ) OR ( luis a clean transport ((em macro) OR (a macro)) ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( luis 3.1 cash transfer 4 cacao ) or ( luis a clean transport ((em macro) OR (a macro)) ))~".
• Adding a wildcard symbol may retrieve word variants: (( luis 3.1 cash transfer 4 cacao ) or ( luis a clean transport ((em macro) OR (a macro)) ))*.