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)
"publicaosoa administration" » "publicaaosoa administration" (Expand Search), "publicoaosoa administration" (Expand Search), "publicasaosoa administration" (Expand Search), "publicaosoa administracao" (Expand Search)
"publicoosas administration" » "publicaoosas administration" (Expand Search), "publicooosas administration" (Expand Search), "publicasoosas administration" (Expand Search), "publicoosas 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 ((("publicaosoa administration") OR ("publicoosas administration"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"public administration\") OR (((\"publicaosoa administration\") OR (\"publicoosas administration\"))))".
• Removing quotes may allow a broader search: (( public administration ) OR ((( publicaosoa administration ) OR ( publicoosas administration )))).
• Adding a wildcard symbol may retrieve word variants: (("public administration") OR ((("publicaosoa administration") OR ("publicoosas administration"))))*.