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)
"publicooao administration" » "publicaooao administration" (Expand Search), "publicoooao administration" (Expand Search), "publicasooao administration" (Expand Search), "publicooao administracao" (Expand Search)
"publicoaaao administration" » "publicaoaaao administration" (Expand Search), "publicooaaao administration" (Expand Search), "publicasoaaao administration" (Expand Search), "publicoaaao 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 ((("publicooao administration") OR ("publicoaaao administration"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"public administration\") OR (((\"publicooao administration\") OR (\"publicoaaao administration\"))))".
• Removing quotes may allow a broader search: (( public administration ) OR ((( publicooao administration ) OR ( publicoaaao administration )))).
• Adding a wildcard symbol may retrieve word variants: (("public administration") OR ((("publicooao administration") OR ("publicoaaao administration"))))*.