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