Perhaps you should try some spelling variations:
"publicas administration" » "publica administration" (Expand Search), "publicas administracao" (Expand Search)
"publico administration" » "publico administracao" (Expand Search), "publica administration" (Expand Search)
"publicos administration" » "publicos administracao" (Expand Search), "publicas administration" (Expand Search), "publica administration" (Expand Search)

You may be able to get more results by adjusting your search query.

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