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