Perhaps you should try some spelling variations:
"sobre politicas publicad." » "sobre politicas publicas.", "sobre politica publica.", "sobre politica publicas.", "sobre politicas publicasad.", "sobre politica publicaad.", "sobre politica publicasad.", "sobre politica publicad.", "serie politicas publicad."
"serie politica publicaa." » "serie politica publica.", "serie politica publicas.", "serie politicas publicas.", "serie politicas publicaa.", "serie policiaca publicaa.", "sobre politica publicaa."
"sobre politicas public." » "sobre politicas publicas.", "sobre politica publica.", "sobre politica publicas.", "sobre politica public.", "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 politicas public.") OR ("sobre politicas publicad."))) or ("serie politica publicaa."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sobre politicas public.") OR ("sobre politicas publicad."))) OR ("serie politica publicaa.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"sobre politicas public.\") OR (\"sobre politicas publicad.\"))) or (\"serie politica publicaa.\"))".
• Removing quotes may allow a broader search: (((( sobre politicas public. ) OR ( sobre politicas publicad. ))) or ( serie politica publicaa. )).
• Adding a wildcard symbol may retrieve word variants: (((("sobre politicas public.") OR ("sobre politicas publicad."))) or ("serie politica publicaa."))*.