Perhaps you should try some spelling variations:
"public administration" » "publica administration" (Expand Search), "publico administration" (Expand Search), "publicas administration" (Expand Search)
"publicoasa administracao" » "publicaoasa administracao" (Expand Search), "publicooasa administracao" (Expand Search), "publicasoasa administracao" (Expand Search), "publicas administracao" (Expand Search), "publicos administracao" (Expand Search)
"publicasos administration" » "publicaasos administration" (Expand Search), "publicoasos administration" (Expand Search), "publicasasos 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 ((("publicoasa administracao") OR ("publicasos administration"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"public administration\") OR (((\"publicoasa administracao\") OR (\"publicasos administration\"))))".
• Removing quotes may allow a broader search: (( public administration ) OR ((( publicoasa administracao ) OR ( publicasos administration )))).
• Adding a wildcard symbol may retrieve word variants: (("public administration") OR ((("publicoasa administracao") OR ("publicasos administration"))))*.