In negative sentences, 任何 has the meaning "nothing". The numeral 一 and a measure word can be placed between 任何 and a noun to emphasize the meaning of the pronoun.
Examples
他刚刚毕业了,目前还没有任何工作
He has just graduated and he doesn't have a job yet
tā gānggāng bìyè le, mùqián hái méi yǒu rènhé gōngzuò