Can’t find a string

Hi there!

I’ve already read the first topic https://www.ads-software.com/support/topic/translations-not-showing-4/, so I don’t want to ask you why something it’s not showing, but I translated a string in a plugin, I tried to look for it in theme or woocommerce folder but everything translated 100%.

So my question is, where I can search for the string?(Which is translated but not showing, yes I said that sorry)

Could you send me also some know issue?

I tried to translate Subscriptio by Rightpress, I’m using Salient theme.
Thanks in advance