BUSCADOR DE RECURSOS UNSAM

Perhaps you should try some spelling variations:
"revolucion rusa problemas." » "revolucion sus problemas." (Expand Search), "revolucion los problemas." (Expand Search), "revolucion dos problemas." (Expand Search)
"resolucion el problema." » "revolucion el problema." (Expand Search), "revolucion del problema." (Expand Search), "resolucion de problema." (Expand Search)
"evolucion de problemas." » "evolucion los problemas." (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 de problemas.") OR ("resolucion el problema."))) OR ("revolucion rusa problemas."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"evolucion de problemas.\") OR (\"resolucion el problema.\"))) OR (\"revolucion rusa problemas.\"))".
• Removing quotes may allow a broader search: (((( evolucion de problemas. ) OR ( resolucion el problema. ))) OR ( revolucion rusa problemas. )).
• Adding a wildcard symbol may retrieve word variants: (((("evolucion de problemas.") OR ("resolucion el problema."))) OR ("revolucion rusa problemas."))*.