Shopify search modification

We are just about to launch our first Shopify site and we have discovered an issue with the way it searches. If you search on our site for the word "atlas" it brings up the first three products which have Atlas in the title. However it also brings up three more products which have “atlas” in the page description. We would like it to NOT search in the description, only the title, SKU and tags.

So we’re looking for someone who can modify our site to accommodate this change.