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)
"publicaosoa administration" » "publicaaosoa administration" (Expand Search), "publicoaosoa administration" (Expand Search), "publicasaosoa administration" (Expand Search), "publicaosoa administracao" (Expand Search), "publicasoa administration" (Expand Search), "publicosoa administration" (Expand Search), "publicassoa 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 ("publicao administration"))) OR ("publicaosoa administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicao administration\"))) OR (\"publicaosoa administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicao administration ))) OR ( publicaosoa administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicao administration"))) OR ("publicaosoa administration"))*.