Senses
倾箱倒箧/ 傾箱倒篋 to turn everything out
to empty out all of one's boxes and suitcases; (metaphorically) to give away everything one owns or exhaust one's resources
倾箱倒箧/ 傾箱倒篋 to ransack
to search thoroughly through boxes and cases; (metaphorically) to leave no stone unturned or search every corner