Creating a Dashboard with filter by Work Note content

Hello, team, how are you? 

I would like to request support in creating a dashboard in ServiceNow with the following objectives:

 1. Create a graph or report that shows how many calls/incidents are received per day and per month, 

2. But with a specific filter, considering only the calls that contain the word "Transfermood" in the Work Note.

 My questions: Is it possible to filter the calls based on a specific word contained in the Work Note? 

What would be the best type of report for this case: bar chart, list, or pivot table? Can this dashboard be automated for daily updates? The idea is to be able to easily track the frequency of occurrences related to this specific term over time. If any adjustments to the form or special permissions are needed, I am at your disposal.

 Thank you in advance for your support!