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)
"publicoaso administration" » "publicaoaso administration" (Expand Search), "publicooaso administration" (Expand Search), "publicasoaso administration" (Expand Search), "publicoaso administracao" (Expand Search), "publicas administration" (Expand Search), "publicos administration" (Expand Search)
"publicosoa administration" » "publicaosoa administration" (Expand Search), "publicoosoa administration" (Expand Search), "publicasosoa administration" (Expand Search), "publicosoa administracao" (Expand Search), "publicos administration" (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 ("publicoaso administration"))) OR ("publicosoa administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicoaso administration\"))) OR (\"publicosoa administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicoaso administration ))) OR ( publicosoa administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicoaso administration"))) OR ("publicosoa administration"))*.