Perhaps you should try some spelling variations:
"sobre politica publica." » "sobre politicas publicas.", "sobre politicas publica."
"der criticism republica." » "homer criticism republica.", "xavier criticism republica.", "javier criticism republica."
"ser criticos republica." » "sus criticos republica.", "de criticos republica.", "ser politicos republica."

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: (("sobre politica publica.") OR ((("ser criticos republica.") OR ("der criticism republica."))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"sobre politica publica.\") or (((\"ser criticos republica.\") OR (\"der criticism republica.\"))))~".
• Removing quotes may allow a broader search: (( sobre politica publica. ) or ((( ser criticos republica. ) OR ( der criticism republica. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("sobre politica publica.") or ((("ser criticos republica.") OR ("der criticism republica."))))*.