Yes! To edit your existing query, click on query and then on Edit query.
Now you'll be able to change your keywords, sources, locations, etc. Keep in mind that when you edit the existing query, the search starts from the beginning and you may lose some of the older results.
After you edit the query, we suggest to wait for a couple of minutes so that the tool can process the data.
If you're not happy with the results, contact out Customer Support through the chat button in the tool.