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)
"publicaosoos administration" » "publicaaosoos administration" (Expand Search), "publicoaosoos administration" (Expand Search), "publicasaosoos administration" (Expand Search), "publicaosoos administracao" (Expand Search)
"publicoaas administration" » "publicaoaas administration" (Expand Search), "publicooaas administration" (Expand Search), "publicasoaas administration" (Expand Search), "publicoaas administracao" (Expand Search), "publicas administration" (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 ("publicaosoos administration"))) OR ("publicoaas administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicaosoos administration\"))) OR (\"publicoaas administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicaosoos administration ))) OR ( publicoaas administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicaosoos administration"))) OR ("publicoaas administration"))*.