Perhaps you should try some spelling variations:
pro{acute}activa » prof{acute}activa, pro{acute}active
pro{acute}tlactica » prof{acute}tlactica, pro{acute}tactica, pro{acute}lactica, pro{acute}atlantica, pro{acute}tltactica, pro{acute}tllactica, pro{acute}tlpractica
pero{acute}actina » pedro{acute}actina, pero{acute}acting
peru{acute}actica » peru{acute}tactica, peru{acute}lactica, peru{acute}practica

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: ((pro{acute}activa OR pro{acute}tlactica) OR (pero{acute}actina OR peru{acute}actica)) ;~.
• Adding a wildcard symbol may retrieve word variants: ((pro{acute}activa or pro{acute}tlactica) or (pero{acute}actina or peru{acute}actica)) ;*.