Perhaps you should try some spelling variations:
"libre{acute}ias." » "libro{acute}ias.", "libre{acute}dias.", "libre{acute}vias."
"librer{acute}dos." » "libror{acute}dos.", "librero{acute}dos.", "llibrer{acute}dos.", "libres{acute}dos."
"librer{acute}rio." » "libror{acute}rio.", "librero{acute}rio.", "llibrer{acute}rio.", "libres{acute}rio."
"libror{acute}dios." » "libros{acute}dios.", "libro{acute}dios.", "librar{acute}dios.", "libror{acute}rios."

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: ("libre{acute}ias." or (("librer{acute}dos." or "libror{acute}dios.") or "librer{acute}rio."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ("libre{acute}ias." OR (("librer{acute}dos." OR "libror{acute}dios.") OR "librer{acute}rio.")).
• Removing quotes may allow a broader search: ( libre{acute}ias. or (( librer{acute}dos. or libror{acute}dios. ) or librer{acute}rio. )).
• Adding a wildcard symbol may retrieve word variants: ("libre{acute}ias." or (("librer{acute}dos." or "libror{acute}dios.") or "librer{acute}rio."))*.