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)
"publicoaoos administration" » "publicaoaoos administration" (Expand Search), "publicooaoos administration" (Expand Search), "publicasoaoos administration" (Expand Search), "publicoaoos administracao" (Expand Search)
"publicoasa administration" » "publicaoasa administration" (Expand Search), "publicooasa administration" (Expand Search), "publicasoasa administration" (Expand Search), "publicoasa 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 ("publicoaoos administration"))) OR ("publicoasa administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicoaoos administration\"))) OR (\"publicoasa administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicoaoos administration ))) OR ( publicoasa administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicoaoos administration"))) OR ("publicoasa administration"))*.