Searching ALL invoices

Does anyone know how I can search for an invoice when I don't know the vendor associated with the invoice? 

This would be very helpful I am interested in the solution

Good evening,

In Accounts Payable module, select Reports-Batch Invoices. Enter the filter parameters desired and when the report populates click the search (binoculars) icon. You can use this to search by invoice number, amounts, description, etc. 

That works. Its not the most intuitive thing ever but ok.