Perhaps you should try some spelling variations:
"publicas administration" » "publica administration" (Expand Search), "publico administration" (Expand Search), "publicas administracao" (Expand Search)
"publicoaa administration" » "publicoaa administracao" (Expand Search), "publica administration" (Expand Search), "publico administration" (Expand Search), "publicos administration" (Expand Search)
"publicaaas administration" » "publicaaas administracao" (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 (((\"publicoaa administration\") OR (\"publicaaas administration\"))))~".
• Removing quotes may allow a broader search: (( publicas administration ) OR ((( publicoaa administration ) OR ( publicaaas administration ))))~.
• Adding a wildcard symbol may retrieve word variants: (("publicas administration") OR ((("publicoaa administration") OR ("publicaaas administration"))))*.