Change label in Candidate tab to Candidate Search

Summary:

Hello everyone,

the client requested to change the label of the sections: Education, Work History, and Language (as I show in the attached screen) in the candidate's tab section of the Recruiting form, to Search candidate.

How can I make this change?

I tried changing the labels by creating a sandbox and using the User interface text tool, but it didn't take me the suggested label change and Work History can't even find it.

Can anyone suggest how I can make the change?

I thank in advance anyone who will answer me.

Regards

Elisa