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)
"publicaosas administration" » "publicaaosas administration" (Expand Search), "publicoaosas administration" (Expand Search), "publicasaosas administration" (Expand Search), "publicaosas administracao" (Expand Search), "publicasas administration" (Expand Search), "publicosas administration" (Expand Search), "publicassas administration" (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)

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 ("publicaosas administration"))) OR ("publicao administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicaosas administration\"))) OR (\"publicao administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicaosas administration ))) OR ( publicao administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicaosas administration"))) OR ("publicao administration"))*.