Perhaps you should try some spelling variations:
polemicas » polemical, polemica, politicas
polemics » polemical
polemicises » polemicists, polemicist, polemicized
polemicised » polemicized, politicised, polemicists

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: ( (polemicas OR polemics) OR ( polemicises OR polemicised ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "( (polemicas OR polemics) or ( polemicises or polemicised ))*".