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