Perhaps you should try some spelling variations:
"temas de administracio publica" » "temas de administracio local" (Expand Search), "temas i administracio publica" (Expand Search), "temas la administracion publica" (Expand Search), "temas dret administratiu publica" (Expand Search)
"temas de administracion local" » "temas de administracio local" (Expand Search), "temas la administracion local" (Expand Search), "temas i administracio local" (Expand Search), "temas i administracion local" (Expand Search), "temas la administracionn local" (Expand Search), "temas dret administratiun 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: "((\"temas de administracio publica\") OR (\"temas de administracion local\"))~".
• Removing quotes may allow a broader search: (( temas de administracio publica ) OR ( temas de administracion local ))~.
• Adding a wildcard symbol may retrieve word variants: (("temas de administracio publica") OR ("temas de administracion local"))*.