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

You may be able to get more results by adjusting your search query.

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