The schedule history page is limited, so in cases we want to see more results we can use system activity’s scheduled_plan explore to see up to 60 days of results.
All you need to do is replace the [YOUR_DOMAIN_NAME_HERE] section in the following link with your instances url, and as long as you have permission to view system_activity explores you can query this:
[YOUR_DOMAIN_NAME_HERE]/explore/system__activity/scheduled_plan?fields=scheduled_job.created_time,scheduled_job.run_once,scheduled_job.id,scheduled_job.status,user.name,scheduled_job_rank.content_type_id,scheduled_plan.name,scheduled_plan_destination.type,scheduled_plan_destination.format,scheduled_job.status_detail,scheduled_job_stage.runtime&sorts=scheduled_job.created_time+desc&limit=500&query_timezone=Europe%2FDublin&vis=%7B%22show_view_names%22%3Afalse%2C%22show_row_numbers%22%3Atrue%2C%22transpose%22%3Afalse%2C%22truncate_text%22%3Atrue%2C%22hide_totals%22%3Afalse%2C%22hide_row_totals%22%3Afalse%2C%22size_to_fit%22%3Atrue%2C%22table_theme%22%3A%22white%22%2C%22limit_displayed_rows%22%3Afalse%2C%22enable_conditional_formatting%22%3Afalse%2C%22header_text_alignment%22%3A%22left%22%2C%22header_font_size%22%3A12%2C%22rows_font_size%22%3A12%2C%22conditional_formatting_include_totals%22%3Afalse%2C%22conditional_formatting_include_nulls%22%3Afalse%2C%22series_types%22%3A%7B%7D%2C%22type%22%3A%22looker_grid%22%2C%22defaults_version%22%3A1%7D&filter_config=%7B%7D&dynamic_fields=%5B%5D&origin=share-expanded