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)
"publicooso administration" » "publicaooso administration" (Expand Search), "publicoooso administration" (Expand Search), "publicasooso administration" (Expand Search), "publicooso administracao" (Expand Search), "publicos administration" (Expand Search)
"publicososo administration" » "publicaososo administration" (Expand Search), "publicoososo administration" (Expand Search), "publicasososo administration" (Expand Search), "publicososo 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 ((("publicooso administration") OR ("publicososo administration"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"public administration\") OR (((\"publicooso administration\") OR (\"publicososo administration\"))))".
• Removing quotes may allow a broader search: (( public administration ) OR ((( publicooso administration ) OR ( publicososo administration )))).
• Adding a wildcard symbol may retrieve word variants: (("public administration") OR ((("publicooso administration") OR ("publicososo administration"))))*.