There are multiple ways to search a sales order. You can use common ways to search or you also can use advanced search.
Search sales order
Either you add text to Search field or use the other methods to search by selecting the rquired informations and the sales orders you are looking for will instantly appear.search
Search sale order by advanced search
For using advanced search on sales order, you will have to activate it by choosing Advanced Seach from this button Big. searchThen you will have some alternatives to choose how you want to search an order.
Either you will have to add yourinformation into the fields or to choose from the given alternative, after you finish you will just have to click on Seach.search