No it would not be correct. Adwords is messed up right now, they changed some stuff in past week that is putting out wrong results.
You could cross ref with alexa, keywordtool, similarweb.com and see if you get any results.
At 3 million it is to much. If you want take the same name and break it down to location like US only, or China Only and then redo results. Also if this name is very close to a generic name say like "homes" and your putting in something similar is may bring back same results.