import requests

r = requests.post(
    "https://wiki.ff.garena.vn/api/app/item?lang=vi",
    headers={
        "User-Agent": "Mozilla/5.0",
        "Content-Type": "application/json",
        "Cookie": "ff_session=R1TsDEVYsC6eAQAAQ1MbvQEv3P1tDyCJwWDlJjP0qhETcGxiY3W0tK_fjq2WnTXpMN2Hu-jzoYDtJ5U1WfhNOq9Gs1OT7L9uacBACDjb8zCSUuKPENKat0fq3f-iHvulL9Sl7pMfteuWcvTmWQig5c6CM-RAjg81htE2o-K_Pl9RqdwH9IbOk67GQQsq4_3Rj2GnO0mu2pSbYpo-2U_B1ar6w07F96TngvG6hioV-k46GCq3GA9z88Pmf6g57sDKI9ijVIZ"
    },
    json={
        "limit": 1,
        "filter": {
            "q": "ak47 rồng xanh"
        }
    }
)

print(r.text)