Perhaps you should try some spelling variations:
"sobre politicas paz." » "sobre politica paz.", "sobre politicas para.", "sobre politicas de.", "sobre politicas en."
"serie politicas publicas." » "serie policiaca publicas.", "serie politicas public.", "serie politicas publico."
"elite politica publica." » "elites politicas publica.", "etica politica publica.", "entre politica publica."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("sobre politicas paz.") or ("elite politica publica."))) or ("serie politicas publicas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sobre politicas paz.") OR ("elite politica publica."))) OR ("serie politicas publicas."))*.
• Removing quotes may allow a broader search: (((( sobre politicas paz. ) or ( elite politica publica. ))) or ( serie politicas publicas. ))*.