Perhaps you should try some spelling variations:
coleccion control » coleccion centro, eleccion control, coleccion canto
ciencias popular » conciencia popular, science popular, cancion popular
control portugal » contada portugal, control tortura, control political
en clacso » red clacso, de clacso, en clase
casa » caso, cada

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: (( coleccion ciencias popular en clacso ) OR ( coleccion control portugal en casa ))~.
• Adding a wildcard symbol may retrieve word variants: (( coleccion ciencias popular en clacso ) or ( coleccion control portugal en casa ))*.