¹  the Day their scheming will be of no benefit to them whatsoever, nor will they be helped.  Dr. Mustafa Khattab

²  the Day when none of their scheming will be of the least avail to them, and they will receive no succour.  Muhammad Asad

³  The Day when their ploys will avail them nothing; and they will not be helped.  Talal Itani

⁴  when their stratagem shall be of no avail to them, nor shall they be succoured.  Maududi

⁵  The Day when their plotting shall not avail them at all nor will they be helped (i.e. they will receive their torment in Hell).  Muhsin Khan

⁶  the Day when their snares will be of no use to them, when they will get no help.  Muhammad Abdel Haleem

⁷  A Day when their cunning will avail them not at all nor will they be helped.  Dr.Leila Bakhtiar

⁸  A day in which their guile will naught avail them, nor will they be helped.  Marmaduke Pickthall

⁹  The Day their plan will not avail them at all, nor will they be helped.  Sahih Int.

¹⁰  The Day when their plotting will avail them nothing and no help shall be given them.  Yusuf Ali

¹¹  (the) day not will avail to them their plotting (in) anything, and not they will be helped.  Word by Word