Perhaps you should try some spelling variations:
"public administration" » "publica administration" (Expand Search), "publico administration" (Expand Search), "publicas administration" (Expand Search)
"public administracao" » "publica administracao" (Expand Search), "publico administracao" (Expand Search), "publicas administracao" (Expand Search)
"publicasosas administration" » "publicaasosas administration" (Expand Search), "publicoasosas administration" (Expand Search), "publicasasosas 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 ("public administracao"))) OR ("publicasosas administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"public administracao\"))) OR (\"publicasosas administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( public administracao ))) OR ( publicasosas administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("public administracao"))) OR ("publicasosas administration"))*.