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)
"publicaasa administration" » "publicaaasa administration" (Expand Search), "publicoaasa administration" (Expand Search), "publicasaasa administration" (Expand Search), "publicaasa administracao" (Expand Search), "publicas administration" (Expand Search)
"publicasoasa administration" » "publicaasoasa administration" (Expand Search), "publicoasoasa administration" (Expand Search), "publicasasoasa administration" (Expand Search), "publicasoasa 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 ((("publicaasa administration") OR ("publicasoasa administration"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"public administration\") OR (((\"publicaasa administration\") OR (\"publicasoasa administration\"))))".
• Removing quotes may allow a broader search: (( public administration ) OR ((( publicaasa administration ) OR ( publicasoasa administration )))).
• Adding a wildcard symbol may retrieve word variants: (("public administration") OR ((("publicaasa administration") OR ("publicasoasa administration"))))*.