The document discusses using remarketing lists for search ads (RLSAs) with dynamic search ads (DSAs) and shopping campaigns to retarget website visitors. It recommends creating RLSA campaigns with DSA to bid on new keywords for retargeting audiences. It also suggests adding RLSAs to existing shopping campaigns to modify bids for past visitors or implementing dedicated RLSA shopping campaigns to target specific audiences like abandoners. The goal is to serve highly relevant ads without extensive keyword research by letting auto-targeted queries trigger ads based on audiences' searches and product feeds.