Hi Jaid.
There may be some "snake oil" salesmen out there with fake elixirs to make you grow, but there really is not much you can do. Genetics are the main reason people are short or tall.
The best you can do is have a healthy diet, exercise, stay hydrated and get plenty of sleep. By providing all your body needs, you will have what's most important - good health for your body to grow as much as it should.