Stepper motors

ive been trying to build a car. im using two stepper motors to run two wheels, the problem is that i dont really get how my motors work. ive been warching youtube videos and browsing different websites but i still cant manage to make them run at the same time. Right now thet take tiny steps forward at a time.
If anyone know how to make them run at the same time, if its possible, id really appreciate the help

See this for general info:

And this for small motors but has example of running multiple motors...:
Scroll down to see how to use Accelstepper library:
"Test Sketch: Runs 1 or 2 Stepper motors in opposite directions, accelerates, decelerates, reverses.
REQUIRES the Accelstepper Library HERE"

These links may help
Stepper Motor Basics
Simple Stepper Code

also look up the AccelStepper library

The basic Stepper library is not suitable for the simultaneous movement of two motors unless you control them 1 step at a time.