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