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 dret administratiu local" » "biblioteca basica dret administracio local" (Expand Search), "biblioteca basica dret administracion local" (Expand Search)

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 dret administratiu local") OR ("biblioteca basica de administracio publica"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"biblioteca basica dret administratiu local\") OR (\"biblioteca basica de administracio publica\"))*".
• Removing quotes may allow a broader search: (( biblioteca basica dret administratiu local ) OR ( biblioteca basica de administracio publica ))*.