Perhaps you should try some spelling variations:
"publica administration" » "publica administracao" (Expand Search)
"publicos administration" » "publicos administracao" (Expand Search), "publico administration" (Expand Search), "publicas administration" (Expand Search)
"publicosa administration" » "publicosa administracao" (Expand Search), "publicoa administration" (Expand Search), "publicasa administration" (Expand Search), "publico administration" (Expand Search), "publicas administration" (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: (((("publica administration") OR ("publicos administration"))) OR ("publicosa administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"publica administration\") OR (\"publicos administration\"))) OR (\"publicosa administration\"))".
• Removing quotes may allow a broader search: (((( publica administration ) OR ( publicos administration ))) OR ( publicosa administration )).
• Adding a wildcard symbol may retrieve word variants: (((("publica administration") OR ("publicos administration"))) OR ("publicosa administration"))*.