brickwork repairs.

I have some bricks in need of repair.They form a decorative corbel around a horizontal perimeter of a house,about half way up the building.Some have great lumps knocked out of them,and because the rear of the house will be painted,I want to do some repairs,so it all looks even.
What can I use?
Weak sand and cement bonded with pva?
Or will i need something more sustantial?

All i want is to show a continous line along the corbels,it does not have to be the same colour,although I aim to try and follow the same form of the corbel with the repairs.

Appreciate your advice.

A 1:3 sand cement mix should do it maybe with a bonding agent unless there is half a brick missing then your better off knocking the whole brick out and replacing it.

replace with new bricks