Language string for 'groups'

Hello

I can't show you the live site as it's in development and it's locked down .. but I've attached a screenshot.

I've also looked for the word 'Groups' in the left column and I can't find where to change it ...

Can you point me in the right direction?

Also, for the EasySocial Search module. I couldn't find where 'advanced search' was ... very strange or the text that follows in the stream 'just logged in to the site'

Thanks