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)
"publicosa administration" » "publicaosa administration" (Expand Search), "publicoosa administration" (Expand Search), "publicasosa administration" (Expand Search), "publicosa administracao" (Expand Search), "publicos administration" (Expand Search), "publica administration" (Expand Search), "publico administration" (Expand Search)
"publicasoos administration" » "publicaasoos administration" (Expand Search), "publicoasoos administration" (Expand Search), "publicasasoos administration" (Expand Search), "publicasoos 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 ("publicosa administration"))) OR ("publicasoos administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicosa administration\"))) OR (\"publicasoos administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicosa administration ))) OR ( publicasoos administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicosa administration"))) OR ("publicasoos administration"))*.