Perhaps you should try some spelling variations:
"publica administration" » "publica administracao" (Expand Search)
"publicoas administration" » "publicoas administracao" (Expand Search), "publicas administration" (Expand Search), "publicos administration" (Expand Search), "publico administration" (Expand Search)
"publicoosas administration" » "publicoosas administracao" (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: "((\"publica administration\") OR (((\"publicoas administration\") OR (\"publicoosas administration\"))))~".
• Removing quotes may allow a broader search: (( publica administration ) OR ((( publicoas administration ) OR ( publicoosas administration ))))~.
• Adding a wildcard symbol may retrieve word variants: (("publica administration") OR ((("publicoas administration") OR ("publicoosas administration"))))*.