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