I just looked at your shop and so tried Christmas cards for a search- I didn't see any from you. Since I have done quite a few ads I learned a few things. 1. Only pick specific items from your shop, best sellers is usually best 2. Only pick a few 2-3 max 3, Use as few and as specific keywords as you can, having 5 or more you pay for impressions that don't get you any views 4. The more you spend, the more impressions you get. If you spend $5, you may not get seen until page 8 in a category that's flooded (I know- I sell jewelry which has over 3 million listings) 5. Renew your search ad items often