Perhaps you should try some spelling variations:
bases transfers » based transfers, basin transfers, based transfer
transport mode » transport modes
sea transport » road transport, bus transport
transfers 2 » transfers _, transfers 3, transfers 6
aguas del » aguas de, aguas do
guias les » guide les, guias de
les bases » les causes
del sea » del area
mode a » mode ad, mode _, code a
2 ao » 2 a, 2 co, 2 do

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( aguas del sea transport mode a ) or ( guias les bases transfers 2 ao ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( aguas del sea transport mode a ) OR ( guias les bases transfers 2 ao ))*.