Perhaps you should try some spelling variations:
"entre politica publicaa." » "entre politica publicas.", "entre politicas publicas.", "entre politicas publicad.", "entre politicas publicasa."
"sobre politica publica." » "sobre politicas publicas.", "sobre politicas publica."
"serie politicas public." » "serie politicas publicas.", "serie politicas publicad.", "serie politica publicas.", "serie policiaca public."

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: (((("sobre politica publica.") OR ("entre politica publicaa."))) OR ("serie politicas public."))~.
• Removing quotes may allow a broader search: (((( sobre politica publica. ) or ( entre politica publicaa. ))) or ( serie politicas public. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("sobre politica publica.") or ("entre politica publicaa."))) or ("serie politicas public."))*.