Mahabharat S16 E09 Duryodhan looks for the Pandavas

Duryodhan sends his spies in search of the Pandavas. The Pandavas hide their weapons. Draupadi names Yudhishthir as Kank, so that he does not have to lie about his name. After eleven months, Duryodhan's spies return without any information. Where are the Pandava brothers?