Very large vehicles such as trailer trucks require plenty of room to manoeuvre, especially through junctions and bends. In the case of this coming together between a tanker and a Perodua Myvi, truck drivers cannot avoid what they cannot see, as the driver of the latter will no doubt have found out for sure by now.
In other situations around large vehicles, if you cannot see the truck driver in their mirror, they most likely cannot see you – that would be a good starting point for precautions to take when being around large vehicles such as this, which also applies when following alongside in a straight line such as when travelling next to one on a highway.