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