@najerapa
When you sign in to ArcGIS Online and go to 'My Content' do you see your layer packages? Then when you do a general search for content you don't see them? If so, then you need to adjust the ArcGIS.com view preferences at the top of the page. At the top of the page, find 'Show: Web content only'. Change this setting to 'Show: All content'. Now do your search again and you should find your layer packages.
If you are on the Map tab and trying to find your layer packages so that you can add them to the map, this is not supported at this time.
Thanks,
Mike