Perhaps you should try some spelling variations:
"etica politica publicas." » "etica politicas publicas.", "etica politica publica.", "etica politica publicaciones.", "publica politica publicas."
"serie policiaca publica." » "serie politica publica.", "serie politicas publicas.", "serie politicas publicad."
"serie politicas pablo." » "serie politica pablo.", "serie politicas para.", "serie politicas paz."

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: (((("serie politicas pablo.") or ("serie policiaca publica."))) or ("etica politica publicas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie politicas pablo.") OR ("serie policiaca publica."))) OR ("etica politica publicas.")).
• Removing quotes may allow a broader search: (((( serie politicas pablo. ) or ( serie policiaca publica. ))) or ( etica politica publicas. )).
• Adding a wildcard symbol may retrieve word variants: (((("serie politicas pablo.") or ("serie policiaca publica."))) or ("etica politica publicas."))*.