Improve Ranking of 5 keyword

It's a long term project but for now, we need someone to improve the first 5 keywords in google raking. Keywords are already optimized but we need to have them on top of google search.

It's a milestone fixed price project. Please see below for regarding keyword and link.

Keywords with the latest ranking as on 23-3-2022

woocommerce stock manager 4
woocommerce pre order 17
woocommerce product video 4
woocommerce video 6
woocommerce video product plugin 5

URLs
https://codecanyon.net/item/woocommerce-product-stock-manager/21703841
https://codecanyon.net/item/woocommerce-preorder-sales-bulk-discount-time-counter/23320020
https://codecanyon.net/item/woocommerce-product-feature-video/20628268

Please let me know if you need any question.