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)
"publicasoso administration" » "publicaasoso administration" (Expand Search), "publicoasoso administration" (Expand Search), "publicasasoso administration" (Expand Search), "publicasoso administracao" (Expand Search)
"publicaaao administration" » "publicaaaao administration" (Expand Search), "publicoaaao administration" (Expand Search), "publicasaaao administration" (Expand Search), "publicaaao 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 ((("publicasoso administration") OR ("publicaaao administration"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"public administration\") OR (((\"publicasoso administration\") OR (\"publicaaao administration\"))))".
• Removing quotes may allow a broader search: (( public administration ) OR ((( publicasoso administration ) OR ( publicaaao administration )))).
• Adding a wildcard symbol may retrieve word variants: (("public administration") OR ((("publicasoso administration") OR ("publicaaao administration"))))*.