Perhaps you should try some spelling variations:
"serie politicos republica." » "serie politico republicano.", "serie criticos republica.", "serie politicas republicanas.", "series politicas republica.", "serie politica republica.", "ser politicos republica."
"etica politica publicas." » "etica politicas publicas.", "etica politica publica.", "etica politica publicaciones.", "publica politica publicas."
"serie politicas pablo." » "serie policiaca pablo.", "serie politica pablo.", "serie politicas para.", "serie politicas paz."

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

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