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)
"publicosas administration" » "publicaosas administration" (Expand Search), "publicoosas administration" (Expand Search), "publicasosas administration" (Expand Search), "publicas administration" (Expand Search), "publicos 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 ("publicosas administration"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"public administration\") OR (((\"publicaa administracao\") OR (\"publicosas administration\"))))".
• Removing quotes may allow a broader search: (( public administration ) OR ((( publicaa administracao ) OR ( publicosas administration )))).
• Adding a wildcard symbol may retrieve word variants: (("public administration") OR ((("publicaa administracao") OR ("publicosas administration"))))*.