Perhaps you should try some spelling variations:
defense nacional » defensa nacional, defense national, defecto nacional
archivs history » archives history, archive history, archival history
a defense » a defence, _ defense
de a » de la, der a, des a
archivio » archivo, archiving, archives

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: ((archivio storico) OR (archivs history)) de a defense nacional (mexico)*.