How can one overcome bad luck in selling goods through lawful means, and are there any Quranic recitations or Prophetic traditions for that?

Sustenance is decreed by Allah Almighty, and you must take lawful means while relying on Him, Glory be to Him. If your sustenance diminishes, then be patiently enduring.

There is no evidence to specify anything from the Qur’an for bringing sustenance, but you must supplicate and increase seeking forgiveness, for Allah Almighty says, on the tongue of Noah (peace be upon him): "And said, 'Ask forgiveness of your Lord. Indeed, He was ever Forgiving. He will send [rain from] the sky upon you in [continuing] showers And give you increase in wealth and children and make for you gardens and make for you rivers.'"