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