Perhaps you should try some spelling variations:
"ser politicos republica." » "ser politico republicano.", "ser criticos republica.", "ser politicas republicanas.", "de politicos republica.", "serie politicas republica.", "y politicos republica."
"usos politicos republica." » "usos politico republicano.", "usos criticos republica.", "usos politicas republicanas."
"serie politica publicas." » "serie politicas publicas.", "serie politica publica.", "serie politica publicaciones.", "serie policiaca publicas.", "sobre politica publicas."

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 politica publicas.") or ((("ser politicos republica.") OR ("usos politicos republica."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("serie politica publicas.") OR ((("ser politicos republica.") OR ("usos politicos republica.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"serie politica publicas.\") or (((\"ser politicos republica.\") OR (\"usos politicos republica.\"))))".
• Removing quotes may allow a broader search: (( serie politica publicas. ) or ((( ser politicos republica. ) OR ( usos politicos republica. )))).
• Adding a wildcard symbol may retrieve word variants: (("serie politica publicas.") or ((("ser politicos republica.") OR ("usos politicos republica."))))*.