Hi @mokbul Welcome!
The Time Period field is as_qdr, and that one does not take the qdr: prefix. You entered qdr:w, which is the format the tbs parameter uses, so Google receives as_qdr=qdr:w, does not recognise it, and hands back unfiltered results.
Put only the letter in that field:
w
Past day is d, past month is m, past year is y, and a number after the letter gives a multiple, so w2 is the last two weeks.