to intertwine; to become entangled; to get tangled (together)
to become intertwined (of matters, interests, etc.); to become connected; to become linked
糸が絡み合って解けない。
The threads are tangled and won't come apart.
複雑な利害が絡み合っている問題だ。
It's a problem with complex interests intertwined.
木の根が地面の下で絡み合った。
The tree roots intertwined underground.