Perhaps you should try some spelling variations:
causes transfers » cash transfers, asset transfers, based transfers
federal transfer » federal transfers, central transfers, fiscal transfer
transfer fee » transfer fees, transfer der, transfer from
debt causes » debt crises
guias debt » guias de
a federal » _ federal
fee macro » new macro
luis a » luis f, luis c

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( luis a federal transfer fee macro ) OR ( guias debt causes transfers _ cao ))~".
• Adding a wildcard symbol may retrieve word variants: (( luis a federal transfer fee macro ) OR ( guias debt causes transfers _ cao ))*.