How to make search better for our site

We have a coupons website with hundreds of online stores. But the search function is not working properly.

For example if someone search for Wedding paper divas at our site. it should go at this url https://www.couponwind.com/view/wedding-paper-divas/ rather then https://www.couponwind.com/?s=Wedding+Paper+Divas&Search=Search, You can type the word and then click search to see the results.

Can anyone recommend me a plugin or solution to do this. Thank you in advance.