bấu víu

verb  

• To hold fast to
  • dốc núi cao lại không có chỗ bấu víu để trèo lên
    the mountain slope was steep and had nothing for them to hold fast to when climbing

• To lean on (when in distress)
  • bơ vơ không biết bấu víu vào đâu
    alone in the world and without any support to lean on