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)
"publicasoosas administration" » "publicaasoosas administration" (Expand Search), "publicoasoosas administration" (Expand Search), "publicasasoosas administration" (Expand Search), "publicasoosas administracao" (Expand Search)
"publicaa administration" » "publicaaa administration" (Expand Search), "publicoaa administration" (Expand Search), "publicasaa administration" (Expand Search), "publicaa administracao" (Expand Search), "publica administration" (Expand Search), "publicas administration" (Expand Search), "publico administration" (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicasoosas administration\"))) OR (\"publicaa administration\"))~".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicasoosas administration ))) OR ( publicaa administration ))~.
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicasoosas administration"))) OR ("publicaa administration"))*.