The default Joomla search form, you get checkboxes where you can filter by different types of "SearchItems".

The checkbox for K2 Items is labelled " K2 Items " - and I want to change this to "Blog Posts".

http://imgur.com/a/Dj8UE

But I cannot seem to find this ANYWHERE...

I have been able to modify other checkboxes on this page by adding content to language file variables... but is this hard coded somewhere? If so - where exactly? Looks like its queried from database maybe, but I can't see any obvious table for that! I've been text searching the Joomla codebase to no avail, so far - if anyone can tip me in the right direction, it is much appreciated!

TIA...

grep -rw "K2_ITEMS"
Try
administrator/language/en_GB/en-GB.plg_search_k2.ini

Awesome, there it is! Thank you VERY MUCH.

(For some reason I had overlooked the /administrator/... folder)