Perhaps you should try some spelling variations:
"las politicas publicad." » "las politica publica.", "las politica publicas.", "las politicos republica.", "las politica publicad.", "las politica publicasd.", "las politicos republicad."
"sobre politicas publica." » "sobre politica publica.", "sobre politica publicas.", "sobre politicos republica.", "serie politicas publica."
"sobre politicas publicas." » "sobre politica publicas.", "sobre politica publicass.", "sobre politicos republicas.", "serie politicas publicas.", "sobre politicas public.", "sobre politicas publico."

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: (("las politicas publicad.") or ((("sobre politicas publica.") OR ("sobre politicas publicas."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("las politicas publicad.") OR ((("sobre politicas publica.") OR ("sobre politicas publicas.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"las politicas publicad.\") or (((\"sobre politicas publica.\") OR (\"sobre politicas publicas.\"))))".
• Removing quotes may allow a broader search: (( las politicas publicad. ) or ((( sobre politicas publica. ) OR ( sobre politicas publicas. )))).
• Adding a wildcard symbol may retrieve word variants: (("las politicas publicad.") or ((("sobre politicas publica.") OR ("sobre politicas publicas."))))*.