How to export products using search filter?
Exports products base on search filter
Step 1:

Go to Products -> Products
Step 2:

In this example filter by "Manufacturer/Brand"
Click on "More Options" to expand more filter option.
Select "Manufacturer/Brand".
Click "Search" button.
Step 3:

Go to "Export", click on "All products".

If data export too large, it will generate a export queue to process.

Once ready, you can download the export from Export dashboard.
How to browse export dashboard.

Go to Tools > Export
Updated on: 15/01/2020
Thank you!