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
guias les » guide les, guias de
les bases » les causes
aguas do » aguas de, aguas del
do sea » do sel, do sex, do sveta
mode a » mode ad, mode _, code a

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

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