Perhaps you should try some spelling variations:
"librero{acute}ias." » "libreros{acute}ias.", "libreria{acute}ias.", "librero{acute}vias.", "llibrero{acute}ias.", "libreo{acute}ias.", "libero{acute}ias."
"libres{acute}dias." » "libres{acute}dvias.", "libros{acute}dias.", "libre{acute}dias.", "libres{acute}dios."
"librer{acute}dvias." » "librer{acute}dvvias.", "llibrer{acute}dvias.", "libre{acute}dvias.", "liber{acute}dvias.", "librer{acute}vias."
"libres{acute}diaz." » "libros{acute}diaz.", "libre{acute}diaz."

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: ("librero{acute}ias." or (("libres{acute}dias." OR "libres{acute}diaz.") or "librer{acute}dvias."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ("librero{acute}ias." OR (("libres{acute}dias." OR "libres{acute}diaz.") OR "librer{acute}dvias.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(\"librero{acute}ias.\" or ((\"libres{acute}dias.\" OR \"libres{acute}diaz.\") or \"librer{acute}dvias.\"))".
• Removing quotes may allow a broader search: ( librero{acute}ias. or (( libres{acute}dias. OR libres{acute}diaz. ) or librer{acute}dvias. )).
• Adding a wildcard symbol may retrieve word variants: ("librero{acute}ias." or (("libres{acute}dias." OR "libres{acute}diaz.") or "librer{acute}dvias."))*.