Perhaps you should try some spelling variations:
pero{acute}icticas » pedro{acute}icticas, pero{acute}ictimas, pero{acute}acticas, pero{acute}cticas
peru{acute}lacticas » peru{acute}tacticas, peru{acute}lactica, peru{acute}practicas
profd{acute}lactico » prof{acute}lactico, proud{acute}lactico, profe{acute}lactico, profd{acute}practico
rol{acute}active » rol{acute}activa

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: ((pero{acute}icticas OR peru{acute}lacticas) OR (profd{acute}lactico OR rol{acute}active)) ;~.
• Adding a wildcard symbol may retrieve word variants: ((pero{acute}icticas or peru{acute}lacticas) or (profd{acute}lactico or rol{acute}active)) ;*.