Why You Shouldn’t Always Listen to Google’s Suggestions...
Building an eCommerce campaign is extra complex. While we don't like a charging set up fee, it covers necessary costs like rebuilding and optimizing your data feed, uploading your product listings, and having our Tag Implementation team set up conversion tracking and dynamic remarketing.
Start out with images you find around your site.
Some potential reasons are you are in a competitive industry, you have other key phrases that have proven to convert, there's low search volume, and where you are searching (Google) from.