This is an unfortunate consequence of how our model search currently works, which we are planning to overhaul. Basically, a number of our sources include a bunch of trim information after the model name, as as long as the beginning of the model matches, we show it as a match. That’s not ideal though, we know, so it will change.
For now, fortunately you can work around this. Just put -“Montero Sport” in the keywords section. (A hyphen (minus sign) followed by Montero Sport in quotes.) That will filter anything with that phrase out of the results, which should leave you with only the regular Montero.