Perhaps you should try some spelling variations:
pero{acute}cticas » pedro{acute}cticas, peru{acute}cticas, pero{acute}acticas, pero{acute}icticas, pero{acute}aticas
pro{acute}eticas » prof{acute}eticas, pro{acute}eticos
prod{acute}actica » profd{acute}actica, proud{acute}actica, prof{acute}actica, prol{acute}actica, prod{acute}tactica, prod{acute}lactica, prod{acute}activa
prod{acute}lactiva » profd{acute}lactiva, proud{acute}lactiva, prof{acute}lactiva, prol{acute}lactiva, prod{acute}activa, prod{acute}lactica, prod{acute}lactima

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((pero{acute}cticas or pro{acute}eticas) or (prod{acute}actica or prod{acute}lactiva)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((pero{acute}cticas OR pro{acute}eticas) OR (prod{acute}actica OR prod{acute}lactiva)) ;.
• Adding a wildcard symbol may retrieve word variants: ((pero{acute}cticas or pro{acute}eticas) or (prod{acute}actica or prod{acute}lactiva)) ;*.