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)
"publicosas administration" » "publicaosas administration" (Expand Search), "publicoosas administration" (Expand Search), "publicasosas administration" (Expand Search), "publicosas administracao" (Expand Search), "publicas administration" (Expand Search), "publicos administration" (Expand Search)
"publicasooaa administration" » "publicaasooaa administration" (Expand Search), "publicoasooaa administration" (Expand Search), "publicasasooaa administration" (Expand Search), "publicasooaa 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 ("publicosas administration"))) OR ("publicasooaa administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicosas administration\"))) OR (\"publicasooaa administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicosas administration ))) OR ( publicasooaa administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicosas administration"))) OR ("publicasooaa administration"))*.