How to use the search button in purchase orders?

video1.0<iframe src="https://www.loom.com/embed/36326627fbef436a8f49bd70db0badca" frameborder="0" width="1304" height="978" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>9781304Loomhttps://www.loom.com9781304https://cdn.loom.com/sessions/thumbnails/36326627fbef436a8f49bd70db0badca-00001.gif24How to use the search button in purchase orders?