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)
"publicoas administration" » "publicaoas administration" (Expand Search), "publicooas administration" (Expand Search), "publicasoas administration" (Expand Search), "publicoas administracao" (Expand Search), "publicas administration" (Expand Search), "publicos administration" (Expand Search), "publica administration" (Expand Search)
"publicoasoooa administration" » "publicaoasoooa administration" (Expand Search), "publicooasoooa administration" (Expand Search), "publicasoasoooa administration" (Expand Search), "publicoasoooa administracao" (Expand Search), "publicasoooa administration" (Expand Search), "publicosoooa administration" (Expand Search), "publicaoooa 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 ("publicoas administration"))) OR ("publicoasoooa administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicoas administration\"))) OR (\"publicoasoooa administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicoas administration ))) OR ( publicoasoooa administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicoas administration"))) OR ("publicoasoooa administration"))*.