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)

You may be able to get more results by adjusting your search query.

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