Perhaps you should try some spelling variations:
"publico administration" » "publica administration" (Expand Search), "publico administracao" (Expand Search)
"publicoa administration" » "publicaa administration" (Expand Search), "publicoa administracao" (Expand Search), "publica administration" (Expand Search), "publicos administration" (Expand Search)
"publicas administration" » "publicas administracao" (Expand Search), "publica 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: (((("publico administration") OR ("publicas administration"))) OR ("publicoa administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"publico administration\") OR (\"publicas administration\"))) OR (\"publicoa administration\"))*".
• Removing quotes may allow a broader search: (((( publico administration ) OR ( publicas administration ))) OR ( publicoa administration ))*.