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