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