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)
"publicao administration" » "publicaao administration" (Expand Search), "publicoao administration" (Expand Search), "publicasao administration" (Expand Search), "publicao administracao" (Expand Search), "publica administration" (Expand Search), "publico administration" (Expand Search), "publicas administration" (Expand Search)
"publicosoosoa administration" » "publicaosoosoa administration" (Expand Search), "publicoosoosoa administration" (Expand Search), "publicasosoosoa administration" (Expand Search), "publicosoosoa 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 ("publicao administration"))) OR ("publicosoosoa administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicao administration\"))) OR (\"publicosoosoa administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicao administration ))) OR ( publicosoosoa administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicao administration"))) OR ("publicosoosoa administration"))*.