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)
"publicaoas administration" » "publicaaoas administration" (Expand Search), "publicoaoas administration" (Expand Search), "publicasaoas administration" (Expand Search), "publicaoas administracao" (Expand Search), "publicas administration" (Expand Search), "publicos administration" (Expand Search)
"publicoosao administration" » "publicaoosao administration" (Expand Search), "publicooosao administration" (Expand Search), "publicasoosao administration" (Expand Search), "publicoosao 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 ("publicaoas administration"))) OR ("publicoosao administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicaoas administration\"))) OR (\"publicoosao administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicaoas administration ))) OR ( publicoosao administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicaoas administration"))) OR ("publicoosao administration"))*.