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