how do I display both a term view and parent terms view on the same taxonomy term page
Please follow the steps to show content of Parent Term on current Term.


Create a view as block
Add relationship as Parent Term
Add contextual filter as Term ID using the relationship and set it like this
Add filter criteria as Taxonomy Vocabulary using the relationship
Add fields whatever you have in taxonomy and use relationship as well


You can also follow the steps in the pics I've created for you.


You don't need to create a new view to show the content of current taxonomy, you can set manage display. Go to admin/structure/taxonomy/TAXONOMYNAME/display

While if you want to display using view, then create another view and follow these steps:


Add contextual filter as Term ID and set it like this
Add fields of the taxonomy you want to show


Note that we won't use any relationship in this view

Now, go to in the block configuration admin/structure/block and enable these.

I hope this will work for you