BUSCADOR DE RECURSOS UNSAM

Perhaps you should try some spelling variations:
"revolucion los problemas." » "revolucion la problemas." (Expand Search), "revolucion rusa problemas." (Expand Search), "revolucion de problemas." (Expand Search)
"evolucion del problema." » "evolucion de problema." (Expand Search), "revolucion de problema." (Expand Search), "evolucion de problemas." (Expand Search)
"resolucion el problema." » "revolucion el problema." (Expand Search), "revolucion del problema." (Expand Search), "resolucion de problema." (Expand Search)

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("evolucion del problema.") OR ("resolucion el problema."))) OR ("revolucion los problemas."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"evolucion del problema.\") OR (\"resolucion el problema.\"))) OR (\"revolucion los problemas.\"))".
• Removing quotes may allow a broader search: (((( evolucion del problema. ) OR ( resolucion el problema. ))) OR ( revolucion los problemas. )).
• Adding a wildcard symbol may retrieve word variants: (((("evolucion del problema.") OR ("resolucion el problema."))) OR ("revolucion los problemas."))*.