同じデータを JSON で取得できます(無料・要APIキー)。
curl -H "Authorization: Bearer $KEY" \
"https://gstudio1.com/api/v1/amazon/suggest?q=kb%20decrease%20xml%20pdf%20decrease%20125%20strong%20python3bb1%20python3bb1pybo3py%20python3python3py3python3py3&flat=1"
API ドキュメント