I have some expenses, bill, and some check but I couldn't find it

Hi, I have all the steps to help you find the transactions you're looking for in your QuickBooks Online (QBO) account. 

QBO makes finding transactions quick and easy with the Advanced Search function. This feature enables you to filter the type of transaction you want to find and the date you've created it. I'll guide you on how:
 

1. Select the Magnifying Glass.
   
   
    
2. If the transaction you're looking for does not appear on the results list, select Advanced Search at the bottom.
   
   
    
3. Enter the date range, transaction type (Bill, Check, and Expense), amount, or transaction number you’re looking for, then select the desired transaction.
   
   
    
4. Adjust the filters to find the type of data you want.

You can utilize this article that details the process: Search for transactions in QuickBooks Online.

Moreover, I've included these articles that you can make use of when doing future tasks in QBO: 

• Customise invoices, estimates, and sales receipts in QuickBooks Online
• Customise reports in QuickBooks Online

If you have further clarifications or concerns, don't hesitate to leave a reply below. I'll be around to answer them for you. Have a good one!