Perhaps you should try some spelling variations:
"biblioteca basica de administracio publica" » "biblioteca basica de administracio local" (Expand Search), "biblioteca basica de administracion publica" (Expand Search), "biblioteca basica i administracio publica" (Expand Search), "biblioteca basica la administracion publica" (Expand Search)
"biblioteca basica de administracionn local" » "biblioteca basica de administracion local" (Expand Search), "biblioteca basica de administracio local" (Expand Search), "biblioteca basica la administracion local" (Expand Search), "biblioteca basica i administracio local" (Expand Search), "biblioteca basica de administracionnn local" (Expand Search), "biblioteca basica i administracionn local" (Expand Search), "biblioteca basica la administracionnn local" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("biblioteca basica de administracio publica") OR ("biblioteca basica de administracionn local"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"biblioteca basica de administracio publica\") OR (\"biblioteca basica de administracionn local\"))".
• Removing quotes may allow a broader search: (( biblioteca basica de administracio publica ) OR ( biblioteca basica de administracionn local )).
• Adding a wildcard symbol may retrieve word variants: (("biblioteca basica de administracio publica") OR ("biblioteca basica de administracionn local"))*.