Perhaps you should try some spelling variations:
transition series » transition period, transition countries
leurs transition » years transition, les transitions, der transition
transfer fairs » transfer factors, transform pairs, transfer fees
site transfer » side transfer, wire transfer, file transfer
series can » series land, series ann, series a
guias web » gis web, guias de
aguas de » aguas del, aguas do, vagues de
de leurs » et leurs
fairs a » fairs _, fair a, fairs 3

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: (( aguas de leurs transition series can ) OR ( guias web site transfer fairs a ))~.
• Adding a wildcard symbol may retrieve word variants: (( aguas de leurs transition series can ) or ( guias web site transfer fairs a ))*.