When you talk to a search engine, you need to realize that it's just a humongous baby. You can't expect it to understand complicated things. You would never try to teach language to a human baby by reading it Nietzsche, and you shouldn't expect a baby google to learn bibliographic data by feeding it MARC (or RDA or METS or MODS, or even ONIX). When a baby says "goo-goo" to you, you don't criticize