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)
"publicoooos administration" » "publicaoooos administration" (Expand Search), "publicooooos administration" (Expand Search), "publicasoooos administration" (Expand Search), "publicoooos administracao" (Expand Search)
"publicasos administration" » "publicaasos administration" (Expand Search), "publicoasos administration" (Expand Search), "publicasasos administration" (Expand Search), "publicasos administracao" (Expand Search), "publicas administration" (Expand Search), "publicos 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 ("publicoooos administration"))) OR ("publicasos administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicoooos administration\"))) OR (\"publicasos administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicoooos administration ))) OR ( publicasos administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicoooos administration"))) OR ("publicasos administration"))*.