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)
"publicasoa administration" » "publicaasoa administration" (Expand Search), "publicoasoa administration" (Expand Search), "publicasasoa administration" (Expand Search), "publicasoa administracao" (Expand Search), "publicas administration" (Expand Search)
"publicossasa administration" » "publicaossasa administration" (Expand Search), "publicoossasa administration" (Expand Search), "publicasossasa administration" (Expand Search), "publicossasa 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 ((("publicasoa administration") OR ("publicossasa administration"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"public administration\") OR (((\"publicasoa administration\") OR (\"publicossasa administration\"))))".
• Removing quotes may allow a broader search: (( public administration ) OR ((( publicasoa administration ) OR ( publicossasa administration )))).
• Adding a wildcard symbol may retrieve word variants: (("public administration") OR ((("publicasoa administration") OR ("publicossasa administration"))))*.