Unable to use letters to search for specific products when creating discounts

When trying to select a specific product to apply a giveaway to, letters are not being detected to filter the products.

1. Start creating a discount

2. Under "Change Apply Discounts to", select "Specific Product" instead of "All"

3. Begin typing in the letters of a product.

4. Notice it updates and says "No results found."

Expected: Typing in letters will hide products without those letters and eventually show the desired one at the top if you match it's name.

Other: For some reason numbers start filter it even though there are no numbers in the product names.