To go to Advanced Ticket Search:

Support Section--> Click Advanced Ticket Search.

View (search) tickets
It can be used to find or filter a specific support tickets by Ticket ID, Client, Subject, Status, Help desk department, or message.

You can either enter a full search query or part of it, for example if you search by a Subject paym, tickets with subject payment, paymore, can i make a payment, etc. would be filtered out.