Perhaps you should try some spelling variations:
"biblioteca basica la administracion publica. serie especial" » "biblioteca basica la administracio publica. serie especial" (Expand Search), "biblioteca basica la administracion local. serie especial" (Expand Search), "biblioteca basica i administracio publica. serie especial" (Expand Search)
"biblioteca basica dret administratiu local. serie especial" » "biblioteca basica dret administracio local. serie especial" (Expand Search), "biblioteca basica dret administracion local. serie especial" (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 dret administratiu local. serie especial") OR ("biblioteca basica la administracion publica. serie especial"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"biblioteca basica dret administratiu local. serie especial\") OR (\"biblioteca basica la administracion publica. serie especial\"))".
• Removing quotes may allow a broader search: (( biblioteca basica dret administratiu local. serie especial ) OR ( biblioteca basica la administracion publica. serie especial )).
• Adding a wildcard symbol may retrieve word variants: (("biblioteca basica dret administratiu local. serie especial") OR ("biblioteca basica la administracion publica. serie especial"))*.