Perhaps you should try some spelling variations:
"temas de administracionn publica" » "temas de administracion publica" (Expand Search), "temas de administracio publica" (Expand Search), "temas la administracion publica" (Expand Search), "temas i administracio publica" (Expand Search), "temas la administracionn publica" (Expand Search), "temas i administracion 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)

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 administracionn publica\") OR (\"temas de administracion local\"))~".
• Removing quotes may allow a broader search: (( temas de administracionn publica ) OR ( temas de administracion local ))~.
• Adding a wildcard symbol may retrieve word variants: (("temas de administracionn publica") OR ("temas de administracion local"))*.