Perhaps you should try some spelling variations:
"sobre politica publicaad." » "sobre politica publica.", "sobre politica publicas.", "sobre politicas publicad."
"serie policiaca publica." » "serie politica publica.", "serie politica publicas.", "serie politicas publicas."
"sobre politicas public." » "sobre politicas publicas.", "sobre politicas publicad.", "sobre politica publica.", "serie politicas 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: (((("sobre politica publicaad.") or ("sobre politicas public."))) or ("serie policiaca publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sobre politica publicaad.") OR ("sobre politicas public."))) OR ("serie policiaca publica.")).
• Removing quotes may allow a broader search: (((( sobre politica publicaad. ) or ( sobre politicas public. ))) or ( serie policiaca publica. )).
• Adding a wildcard symbol may retrieve word variants: (((("sobre politica publicaad.") or ("sobre politicas public."))) or ("serie policiaca publica."))*.