Perhaps you should try some spelling variations:
federal transfers » central transfers, fiscal transfers
crises transfers » risk transfers, cash transfers, wire transfers
transfers fee » transfer fee, transfer fees, transfers bei
debt crises » debt crisis
guias debt » guias de
c federal » _ federal, a federal, 4 federal
luis c » luis f
macao » macro, macau, cacao

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 c federal transfers fee macao ) OR ( guias debt crises transfers _ cao ))~.
• Adding a wildcard symbol may retrieve word variants: (( luis c federal transfers fee macao ) or ( guias debt crises transfers _ cao ))*.