How many questions are you sure about:

1. Have you carefully read the position of the company you submitted, and are you competent?

2. How long have these companies been recruiting, and will they continue to recruit?

3. If this kind of delivery is repeated before, there will be basically no response, and HR will not contact again unless absolutely necessary;

4, online recruitment is like this, it is impossible to reply to you, you should be mentally prepared, multiple websites deliver more, do it in multiple ways at the same time, don't hang yourself on a tree. It's luck to find a job these days.

Finally, don't be discouraged. Good luck.