Perhaps you should try some spelling variations:
"public administration" » "publica administration" (Expand Search), "publico administration" (Expand Search), "publicas administration" (Expand Search)
"publicoasoos administracao" » "publicaoasoos administracao" (Expand Search), "publicooasoos administracao" (Expand Search), "publicasoasoos administracao" (Expand Search)
"publicaaas administration" » "publicaaaas administration" (Expand Search), "publicoaaas administration" (Expand Search), "publicasaaas 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 ("publicoasoos administracao"))) OR ("publicaaas administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicoasoos administracao\"))) OR (\"publicaaas administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicoasoos administracao ))) OR ( publicaaas administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicoasoos administracao"))) OR ("publicaaas administration"))*.