pull strings
US /pʊl strɪŋz/
UK /pʊl strɪŋz/

1.
mover hilos, usar influencias
to use one's influence with others to gain an advantage or special favor
:
•
He had to pull strings to get his son into that exclusive school.
Tuvo que mover hilos para que su hijo entrara en esa escuela exclusiva.
•
She's good at pulling strings to get what she wants.
Es buena para mover hilos y conseguir lo que quiere.