WP Plugin

looking for the following WP plugin or solution....

a search and submit. You enter text in search field, if the text is not associated with a page it will tell you invalid code. If it is associated with a page it will take you there.

Example: discount3 is a valid code.
Search for "discount3" it will take you to discount3 page

if you search for a discount that doesn't exist it says "that is an invalid discount code"


if anyone can let me know if there is a plugin for something like this it would be greatly appreciated.
Thanks!

Use redirects, have all searches lead to a page saying "That code does not exist" and then have your redirects go to a good page for the right searches.

So you would redirect website.com/search/discount3 to website.com/discount3

You can use the plugin "simple 301 redirects" for this