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