Perhaps you should try some spelling variations:
transition series » transition period, transition countries
les transition » les transitions, des transitions, de transition
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
fairs a » fair a, fairs 3
de les » de ley, de leurs, de l'esr

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 les transition series can ) OR ( guias web site transfer ((fairs a) OR (fairs _)) ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( aguas de les transition series can ) or ( guias web site transfer ((fairs a) OR (fairs _)) ))~".
• Adding a wildcard symbol may retrieve word variants: (( aguas de les transition series can ) or ( guias web site transfer ((fairs a) OR (fairs _)) ))*.