Perhaps you should try some spelling variations:
"public administration" » "publica administration" (Expand Search), "publico administration" (Expand Search), "publicas administration" (Expand Search)
"publicaa administracao" » "publicaaa administracao" (Expand Search), "publicoaa administracao" (Expand Search), "publicasaa administracao" (Expand Search), "publica administracao" (Expand Search), "publicas administracao" (Expand Search), "publico administracao" (Expand Search)
"publicoasoosas administration" » "publicaoasoosas administration" (Expand Search), "publicooasoosas administration" (Expand Search), "publicasoasoosas 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 ((("publicaa administracao") OR ("publicoasoosas administration"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"public administration\") OR (((\"publicaa administracao\") OR (\"publicoasoosas administration\"))))".
• Removing quotes may allow a broader search: (( public administration ) OR ((( publicaa administracao ) OR ( publicoasoosas administration )))).
• Adding a wildcard symbol may retrieve word variants: (("public administration") OR ((("publicaa administracao") OR ("publicoasoosas administration"))))*.