How cute they are and it is possible that they are bored, is that dogs need physical activity ha ha. But, you know what you can do? Google interactive games, you could hide concentrate in a bottle, or put some nuggets between fabrics for them to sniff and find their treats. There is also music to relax dogs, on YouTube, not that it will do much good but, maybe yes hehehe.
Beautiful your little ones, I hope they don't damage the garbage anymore hehehe.