Perhaps you should try some spelling variations:
pro{acute}sintacticas » pero{acute}sintacticas, prof{acute}sintacticas, pro{acute}sintactica, pro{acute}sintacticos, pro{acute}sintactico, pro{acute}sintaacticas, pro{acute}sintaicticas, pro{acute}sintaeticas, pro{acute}sinttacticas, pro{acute}sintlacticas, pro{acute}sintactivas
prod{acute}intima » perod{acute}intima, profd{acute}intima, proud{acute}intima, prof{acute}intima, prol{acute}intima, prod{acute}intimo
prod{acute}cticas » perod{acute}cticas, profd{acute}cticas, proud{acute}cticas, prof{acute}cticas, prol{acute}cticas, prod{acute}acticas, prod{acute}icticas, prod{acute}eticas
perofound{acute}actica » profound{acute}actica, perofound{acute}tactica, perofound{acute}lactica, perofound{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: (((pro{acute}sintacticas OR prod{acute}intima) OR prod{acute}cticas) OR perofound{acute}actica) ;~.
• Adding a wildcard symbol may retrieve word variants: (((pro{acute}sintacticas or prod{acute}intima) or prod{acute}cticas) or perofound{acute}actica) ;*.