Perhaps you should try some spelling variations:
archivo historico » archive history, archivs history, archiving historical
archiving history » archives history, living history
searching history » teaching history, learning history, search history
archival history » archives history, parochial history, archival study
la defense » _ defense
a defense » a defence, _ defense

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: ((((archivo historico) OR (archivio storico))) OR (((((archiving history) OR (searching history))) OR (archival history)))) de ((la defense) OR (a defense)) nacional (mexico).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((archivo historico) or (archivio storico))) or (((((archiving history) OR (searching history))) or (archival history)))) de ((la defense) or (a defense)) nacional (mexico)".
• Adding a wildcard symbol may retrieve word variants: ((((archivo historico) or (archivio storico))) or (((((archiving history) OR (searching history))) or (archival history)))) de ((la defense) or (a defense)) nacional (mexico)*.