Preheat oven to 180 degrees C. Grease baking trays.
In a large bowl, stir together the flour, bicarb soda, salt, white sugar, brown sugar, oats and coconut. Make a well in the centre and pour in the oil, eggs and vanilla. Mix well using your hands or a wooden spoon.
Roll the dough into walnut sized balls and place 5cm apart onto the prepared baking trays. Flatten slightly with a fork.
Bake for 10 to 12 minutes in the preheated oven. Biscuits should be a very light brown and chewy - not crisp. Cool for a couple of minutes on the baking trays before removing to wire racks to cool completely.