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