Perhaps you should try some spelling variations:
"public administration" » "publica administration" (Expand Search), "publicas administration" (Expand Search), "publicos administration" (Expand Search), "public administracao" (Expand Search)
"publicaasao administration" » "publicaaasao administration" (Expand Search), "publicasaasao administration" (Expand Search), "publicosaasao administration" (Expand Search), "publicaasao administracao" (Expand Search)
"publico administration" » "publicao administration" (Expand Search), "publicaso administration" (Expand Search), "publicoso administration" (Expand Search), "publico administracao" (Expand Search), "publica 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 ((("publicaasao administration") OR ("publico administration"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"public administration\") OR (((\"publicaasao administration\") OR (\"publico administration\"))))".
• Removing quotes may allow a broader search: (( public administration ) OR ((( publicaasao administration ) OR ( publico administration )))).
• Adding a wildcard symbol may retrieve word variants: (("public administration") OR ((("publicaasao administration") OR ("publico administration"))))*.