Perhaps you should try some spelling variations:
"serie policiacas publica." » "serie politicas publicas.", "serie politica publica.", "serie politicas publicad.", "serie policiaca publica.", "serie politicas publica."
"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."

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 policiacas publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sobre politica public.") OR ("sobre politica publicas."))) OR ("serie policiacas publica."))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"sobre politica public.\") OR (\"sobre politica publicas.\"))) or (\"serie policiacas publica.\"))*".
• Removing quotes may allow a broader search: (((( sobre politica public. ) OR ( sobre politica publicas. ))) or ( serie policiacas publica. ))*.