Search specific term/phrase surrounded by double quotes. e.g. “deep linking”
Exclude records that contain a specific term prefixed with a minus. e.g. Android -Firebase

Why are the ads macros/parameters not visible in the dashboard?

The analytics labels that can be viewed on the dashboard are listed here. Any other custom macros that are added on the Ad Links will be visible in the exports via Daily Export API or Custom Exports API in the last_attributed_touch_data_custom_fields column.