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)
"publicoss administration" » "publicaoss administration" (Expand Search), "publicooss administration" (Expand Search), "publicasoss administration" (Expand Search), "publicoss administracao" (Expand Search), "publicos administration" (Expand Search), "publico administration" (Expand Search), "publicas administration" (Expand Search)
"publicooasoa administration" » "publicaooasoa administration" (Expand Search), "publicoooasoa administration" (Expand Search), "publicasooasoa administration" (Expand Search), "publicooasoa 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 ("publicoss administration"))) OR ("publicooasoa administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicoss administration\"))) OR (\"publicooasoa administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicoss administration ))) OR ( publicooasoa administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicoss administration"))) OR ("publicooasoa administration"))*.