How to separate Print report in Odoo 10?
You can not apply a domain over that menu, you should remove this menus and use/create buttons to print Quotation or Order, you can apply domain over a button.
In Sale Module, We Create Sale Order and Quotation Reports. Both Reports are displayed in print button. We need to separate that reports based on Quotation and Sale Order. 
We Using same Model name for sale and Quotation but write different view file.