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

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