Perhaps you should try some spelling variations:
"academia administrativo" » "academia administrativas", "academia administracion"
"academico administrativo" » "academico administrativas", "academico administracion"
"academicas administrativo" » "academicas administrativas", "academicas administracion"
"academica administration" » "academica administracion", "academica administrativos", "academica administrativa"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("academia administrativo") OR ((("academico administrativo") OR ("academicas administrativo"))))) OR ("academica administration"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"academia administrativo\") or (((\"academico administrativo\") OR (\"academicas administrativo\"))))) or (\"academica administration\"))~".
• Removing quotes may allow a broader search: (((( academia administrativo ) or ((( academico administrativo ) OR ( academicas administrativo ))))) or ( academica administration ))~.
• Adding a wildcard symbol may retrieve word variants: (((("academia administrativo") or ((("academico administrativo") OR ("academicas administrativo"))))) or ("academica administration"))*.