Perhaps you should try some spelling variations:
"public administration" » "publica administration" (Expand Search), "publico administration" (Expand Search), "publicas administration" (Expand Search), "public administracao" (Expand Search)
"publicaaosoa administration" » "publicaaaosoa administration" (Expand Search), "publicoaaosoa administration" (Expand Search), "publicasaaosoa administration" (Expand Search), "publicaaosoa administracao" (Expand Search)
"publicasao administration" » "publicaasao administration" (Expand Search), "publicoasao administration" (Expand Search), "publicasasao administration" (Expand Search), "publicasao administracao" (Expand Search), "publicas 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 ((("publicaaosoa administration") OR ("publicasao administration"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"public administration\") OR (((\"publicaaosoa administration\") OR (\"publicasao administration\"))))".
• Removing quotes may allow a broader search: (( public administration ) OR ((( publicaaosoa administration ) OR ( publicasao administration )))).
• Adding a wildcard symbol may retrieve word variants: (("public administration") OR ((("publicaaosoa administration") OR ("publicasao administration"))))*.