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)
"publicaoaaas administration" » "publicaaoaaas administration" (Expand Search), "publicoaoaaas administration" (Expand Search), "publicasaoaaas administration" (Expand Search), "publicaoaaas 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 ("publicaoaaas administration"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"public administration\") OR (((\"publicosas administration\") OR (\"publicaoaaas administration\"))))".
• Removing quotes may allow a broader search: (( public administration ) OR ((( publicosas administration ) OR ( publicaoaaas administration )))).
• Adding a wildcard symbol may retrieve word variants: (("public administration") OR ((("publicosas administration") OR ("publicaoaaas administration"))))*.