Text does not change

I use theme workscout with wp job manager. I want to change text on job and resume post form. but it does not work. I use text domain as “workscout” as I saw it like this on the coding file. And use random Text context. eg. “post page”.

Could you give us some advices/help?

Thank you.

https://ww.wp.xz.cn/plugins/say-what/