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