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)
"publicoasoos administration" » "publicaoasoos administration" (Expand Search), "publicooasoos administration" (Expand Search), "publicasoasoos administration" (Expand Search), "publicoasoos administracao" (Expand Search)
"publicaos administration" » "publicaaos administration" (Expand Search), "publicoaos administration" (Expand Search), "publicasaos administration" (Expand Search), "publicaos administracao" (Expand Search), "publicas administration" (Expand Search), "publicos administration" (Expand Search), "publica 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 ("publicoasoos administration"))) OR ("publicaos administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicoasoos administration\"))) OR (\"publicaos administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicoasoos administration ))) OR ( publicaos administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicoasoos administration"))) OR ("publicaos administration"))*.