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

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("serie politicas public.") or ((("sobre politicas publica.") or ("las politicas publica."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("serie politicas public.") OR ((("sobre politicas publica.") OR ("las politicas publica.")))).
• Removing quotes may allow a broader search: (( serie politicas public. ) or ((( sobre politicas publica. ) or ( las politicas publica. )))).
• Adding a wildcard symbol may retrieve word variants: (("serie politicas public.") or ((("sobre politicas publica.") or ("las politicas publica."))))*.