Searchbot - new app idea help

I need some ideas on getting started with a new app
our company employs many field technicians
each technician has over 1000 procedures that he may use depending on the job to be completed
I would like to make an app to assist in finding the correct procedure for the job.
I am unsure if the chatbot would work for this
Do any of the experts have a suggestion on which features to use to create this app?