How do I find out which search terms created enough traffic and conversions to be added as keywords?
I assume you will be using these keywords as part of on-page and off-page optimization process. You can look at some of the following to expand keyword coverage.
In addition, you might also like to try get your hands on semrush or any other competitive sem analysis tool that will help you add more quality keywords.
Hope this helps.
Thank you Manu!