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