In ArcGIS Online, the Views shows the number of times an item has been viewed or opened. In some instances, the number of views reported for an item on the Search Results page differs from the number of views reported on the Item Details page in ArcGIS Online.
This is expected behavior. The search result displays the information that was present the last time the item was updated. If an item appearing in the search results is out of date, it can be updated by modifying the item. A non-invasive way to trigger an update can be, for example, adding a space to the end of the Description, Summary, or Access and Use Constraints sections, changing the sharing permissions, or rating or commenting on the item.