Some jobs clearly stated that the salary was 7000- 10000, but after the interview, HR said that it was not much.

Hanging 7000- 10000 is generally not less than 8-9K, and it is generally impossible to give1w. This is also looking for work experience. The company hangs an attractive resume like this. If you are not satisfied with your salary, you can also find someone who meets your expectations, and the two sides will talk again.