This is the 11223rd most frequent Polish word.
grzebali
"Grzebali" means "they were digging" or "they were rummaging".
In this sentence, "grzebali" is used to describe the action of searching through physical ground, implying a digging or probing activity.
Grzebali w ziemi szukając zakopanego skarbu.
They were digging in the ground looking for buried treasure.
Here, "grzebali" indicates searching or ransacking through someone's personal belongings.
Grzebali w mojej szufladzie bez pozwolenia.
They rummaged through my drawer without permission.
In this context, "grzebali" describes an activity of detailed or prolonged fiddling with an object, in this case, a computer, suggesting effort and intent.