Perhaps you should try some spelling variations:
prol{acute}tacticas » rol{acute}tacticas, prof{acute}tacticas, prol{acute}practicas, perol{acute}tacticas, profl{acute}tacticas
prol{acute}tactica » rol{acute}tactica, prof{acute}tactica, perol{acute}tactica, profl{acute}tactica, prol{acute}practica
perof{acute}eticas » pero{acute}eticas, prof{acute}eticas, peron{acute}eticas, perof{acute}eticos
pro{acute}activa » pero{acute}activa, prof{acute}activa, pro{acute}active

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: ((prol{acute}tacticas OR perof{acute}eticas) OR (pro{acute}activa OR prol{acute}tactica)) ;~.
• Adding a wildcard symbol may retrieve word variants: ((prol{acute}tacticas or perof{acute}eticas) or (pro{acute}activa or prol{acute}tactica)) ;*.