How to search, filter, and sort Amazing Field data
Trello's searching, filtering, and sorting capabilities are embedded into the advanced capabilities of Trello. Amazing Fields provides integration through the use of Trello custom fields. Any fields setup to synchronize with a custom field is available for Trello to access for these activities.
See the related article below about how to setup links to custom fields.
Table View Alternative
If you are willing to use a different view, you can make use of the Table View that is supported by Amazing Fields. It can be used to live filter on any field value. It shows the results in a table layout and allows for opening the cards that match of exporting the data.