Perhaps you should try some spelling variations:
rol{acute}reactivas » rol{acute}reactivos, rol{acute}reactiva, rol{acute}creativas
prod{acute}eticas » proud{acute}eticas, prof{acute}eticas, prol{acute}eticas, prod{acute}eticos, perod{acute}eticas, profd{acute}eticas
pro{acute}actica » pero{acute}actica, prof{acute}actica, pro{acute}tactica, pro{acute}lactica, pro{acute}activa
proffd{acute}practica » peroffd{acute}practica, profffd{acute}practica, proffd{acute}prtactica, proffd{acute}prlactica, proffd{acute}practiva

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((rol{acute}reactivas OR prod{acute}eticas) OR (pro{acute}actica OR proffd{acute}practica)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((rol{acute}reactivas OR prod{acute}eticas) OR (pro{acute}actica OR proffd{acute}practica)) ;*.