Hide empty results in views caused by entity translation?
THE SOLUTION: after three days, i got that if you use entity translation in the 'entity' mode, you get some option in Views filters. In my case, only the field "body" in nodes was translatable and there was an option, among filter

Body's language


Setting this to "Current user's language" does the trick.

I heard about an option Node Translation to be set this way, but you don't have that option if you check as translatable only some field and not the whole node.