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