In Accounting 2.0, in order to Search via a bank account, there are two options:
1. In the Register tab, select the bank account you'd like to search through. Then use the Filter Transactions box on the top left to find transactions. You can search by Vendor, COA # or name and amounts. You can change the date range to help filter the results as well.
2. You can also run the General Ledger Report to view transactions within a specific chart of account, a range of accounts, or all accounts for a time frame.