Hello Igor,
In Google Ads API we will need to specify corresponding ad_group_criterion or campaign_criterion fields if any criteria specific data needs to be fetched. This will allow Google Ads API clients to request ad_group_criterion or campaign_criterion fields and the *_view resource in the same request to the GoogleAdsService.SearchStream method. For example, data similar to the Keywords Performance Report is available in the keyword_view resource. Unless absolutely necessary, *_view resources will only contain a resource_name field.
Please refer to the following links below for getting more information on criterion reports.
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