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)
"publicasaas administration" » "publicaasaas administration" (Expand Search), "publicoasaas administration" (Expand Search), "publicasasaas administration" (Expand Search), "publicasaas administracao" (Expand Search)
"publicoosoa administration" » "publicaoosoa administration" (Expand Search), "publicooosoa administration" (Expand Search), "publicasoosoa administration" (Expand Search), "publicoosoa 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 ((("publicasaas administration") OR ("publicoosoa administration"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"public administration\") OR (((\"publicasaas administration\") OR (\"publicoosoa administration\"))))".
• Removing quotes may allow a broader search: (( public administration ) OR ((( publicasaas administration ) OR ( publicoosoa administration )))).
• Adding a wildcard symbol may retrieve word variants: (("public administration") OR ((("publicasaas administration") OR ("publicoosoa administration"))))*.