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)
"publicos administration" » "publicaos administration" (Expand Search), "publicoos administration" (Expand Search), "publicasos administration" (Expand Search), "publicos administracao" (Expand Search), "publico administration" (Expand Search), "publicas administration" (Expand Search), "publica administration" (Expand Search)
"publicosoosaa administration" » "publicaosoosaa administration" (Expand Search), "publicoosoosaa administration" (Expand Search), "publicasosoosaa administration" (Expand Search), "publicosoosaa administracao" (Expand Search), "publicooosaa administration" (Expand Search), "publicasoosaa administration" (Expand Search), "publicaoosaa administration" (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 ("publicos administration"))) OR ("publicosoosaa administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"public administration\") OR (\"publicos administration\"))) OR (\"publicosoosaa administration\"))".
• Removing quotes may allow a broader search: (((( public administration ) OR ( publicos administration ))) OR ( publicosoosaa administration )).
• Adding a wildcard symbol may retrieve word variants: (((("public administration") OR ("publicos administration"))) OR ("publicosoosaa administration"))*.