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