HI Sean ,  

From Search Filters Drop-down

Click on add custom filter  

First -> Sale Pricelist 

Second Select > Contains 

Third write Trade 

Then apply the filter you can will get your result 

If you want to save the custom filter for future then you can  Click on search bar > Favorites  > Save current search With give your name like : Trade price list  so it will be used for future too.

Hope this will be helps you more ...

Thanks.

Devintellecs.com