Go to your campaign screen and find the desired campaign with the non-openers (or non-clickers).
From the far-right menu, click "create list".
Name your new list and select statuses of the contacts that should be included in it. For example, if you want the non-openers - leave the "opened" checkbox unchecked. If you want the openers, but non-clickers, check the "opened" checkbox, but leave the "clicked" unchecked, etc. Non-openers example:
Go to your Contacts screen, select the newly created list and select "Create Campaign" option
Send your campaign!