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