For a normal vagina smell you have to take special care of your overall health. Drink 3 liters of water a day and avoid sugary drinks. Consumption of Yoghurt and garlic will help too.
Avoid tight pants and panties, use baby wipes to wipe your vagina and avoid using feminine soaps as they could cause an imbalance in PH.
Cleaning with just plain water is enough. Also get rid of excessive pubic hair as a bushy vagina could harbor bacteria and fungi.