Perhaps you should try some spelling variations:
"public administration" » "publica administration" (Expand Search), "publico administration" (Expand Search), "publicas administration" (Expand Search)
"publicooas administracao" » "publicaooas administracao" (Expand Search), "publicoooas administracao" (Expand Search), "publicasooas administracao" (Expand Search), "publicas administracao" (Expand Search), "publicos administracao" (Expand Search)
"publicosa administration" » "publicaosa administration" (Expand Search), "publicoosa administration" (Expand Search), "publicasosa administration" (Expand Search), "publicos administration" (Expand Search), "publica administration" (Expand Search), "publico 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 ("publicooas administracao"))) OR ("publicosa administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicooas administracao\"))) OR (\"publicosa administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicooas administracao ))) OR ( publicosa administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicooas administracao"))) OR ("publicosa administration"))*.