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

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