In the past, they called this “Power Building” and more recently “A Lift Specific Plan.”
Basically, training the comp lifts to get stronger. Then hitting the important bodyparts for your physique like lats, quads, shoulders and arms with bodybuilding style lifts.
Like the other guys mentioned, many (nearly all?) of these plans are based on training 3-4 times per week, because you’re lifting heavier weights, and need a little more time to recover between sessions.
Here are some guidelines from Christian Thibadeau.