Perhaps you should try some spelling variations:
defense monoclonal » disease monoclonal, diseases monoclonal, develop monoclonal
archivo historico » archivio storico, archive history, archiving historical
response monotone » response mnotone, response monokines, response monitors
defense regional » disease regional, defense national, diverse regional
archivs history » archives history, archive history, archival history

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 (archivs history)) de la ((((defense monoclonal) OR (((response monoclonal) OR (response monotone))))) OR (defense regional)) (mexico).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((archivo historico) or (archivs history)) de la ((((defense monoclonal) or (((response monoclonal) OR (response monotone))))) or (defense regional)) (mexico)".
• Adding a wildcard symbol may retrieve word variants: ((archivo historico) or (archivs history)) de la ((((defense monoclonal) or (((response monoclonal) OR (response monotone))))) or (defense regional)) (mexico)*.