Perhaps you should try some spelling variations:
"serie policiacas public." » "serie politicas publicas.", "serie politicas publicad.", "serie policiaca public.", "serie politicas public.", "series politicas public."
"serie politica publica." » "serie politicas publicas.", "serie politicas publica.", "serie policiaca publica.", "sobre politica publica."
"serie exilio republicano." » "ette exilio republicano.", "levil exilio republicano.", "medio exilio republicano.", "serie exilio republica."

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