Perhaps you should try some spelling variations:
"academic administrativa" » "academico administrativa", "academia administrativa", "academicas administrativa"
"academic administracion" » "academico administracion", "academia administracion", "academicas administracion"
"academica administration" » "academicoa administration", "academiaa administration", "academicasa administration", "academicas administration", "academica administrativos", "academica administrativo", "academica administrativas"
"academica administraciones" » "academicoa administraciones", "academiaa administraciones", "academicasa administraciones", "academicas administraciones", "academica administradores", "academica administrativas", "academica administrativos"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("academic administrativa") or ("academic administracion"))) or ((("academica administration") OR ("academica administraciones"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("academic administrativa") OR ("academic administracion"))) OR ((("academica administration") OR ("academica administraciones")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"academic administrativa\") or (\"academic administracion\"))) or (((\"academica administration\") OR (\"academica administraciones\"))))".
• Removing quotes may allow a broader search: (((( academic administrativa ) or ( academic administracion ))) or ((( academica administration ) OR ( academica administraciones )))).
• Adding a wildcard symbol may retrieve word variants: (((("academic administrativa") or ("academic administracion"))) or ((("academica administration") OR ("academica administraciones"))))*.