There are two types of search available in the Inventory window, a Current View Search and a Global Search
Current View Search – For the current open sheet you are viewing, click the Search/Filter box at the top of the listing and type the name of the item you are looking for. The list will shorten to all items containing the entered text
Global Search – On the
Inventory Count Toolbar, click the Search button to search for an item in all locations
within the inventory. Double click to go to that item in the location
selected.