Perhaps you should try some spelling variations:
"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)
"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)

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