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