Why do people do google searches when you don't need them? Just bookmark the NESCardDB site and you won't need to do any search. People nowadys
If I am away from home and do not remember the URL of bootgod's database (I actually don't since it's complicated) then I'll search for "bootgod database", just once. Then I'll use history if I don't remember the URL a second time.
There's no need for all that unnecessary trafic on Google (or whathever other search engine), also it mens extra spying on your from them.
As for the title of the thread, google always uses a "most likely" search strategy, and does so even more since its earlier days. They computed it's so much more likely someone search for a Dragon Warrior IV ROM than search for it's bootgod database entry that it assumes it's what you want. This also leaves it proposing stupid stuff most people are interested in but we aren't.