Perhaps you should try some spelling variations:
politicos republica » politico republicano, criticos republica, politicas republicanas
politicas publicad » politicas publicas, politica publica, politica publicas
politico publicas » politica publicas, politicas publicas, politica publica
delito politico » delitos politicos, mito politico, etico politico

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 publicad) OR (politicos republica)). ) OR ( delito politico publicas. ))~.
• Adding a wildcard symbol may retrieve word variants: (( serie ((politicas publicad) or (politicos republica)). ) or ( delito politico publicas. ))*.