Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (209.99 USD): BG479b79
Coupon (404.79 USD): hoNEYbGdeAlS
(CouponsFromChina.com tip: this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGCCV14S, BGAlerabatLP, BGV14SU, BGDEV14U, BG65f717, ADMITAD2212, BGeba3c6, 2022ACTIESNL, BG21529a, BG80ded8, BGed7eae, Terence, BG29aa0c, 2203ActiesNL, BG0fa6ea, BG1efeb0, MVC8SPRING, BGc99f23, 8BGwbg2204, tRaDetRaCKeR, BGbbc5a8, BG2aea02, 8wEbgaInS5, BG6e84a2, pROMo8cuPoN, BG4123fd, BG138a35, BGJP50OFF01
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Price history (for all/most countries) for DERE V14S Laptop 14.1 Inch N5095 12/128GB is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).