Installation:
You'll need to preserve the file paths to ensure it will all work properly. Other than that just overwrite and add the files to your current Cutenews.ru
You can see it working/functioning properly at www.scodal.com and www.scodal.com/search.php (search something like 'the' and that'll bring up more than 10 results) Also, I've included the blank file /data/search-history.txt because without it you'll automatically get an error when you try to use search-history and there's just no reason for that when the problem is fixed regardless with a 0 byte file.
I feel like more than me writing a new plugin or addon to cutenews.ru I've merely used the existing code and helped to finish something that should have been done long ago. My apologies for not figuring this out sooner. It seems to so clear to me now lol
Fixing the error if you get one...
Download & activate the search history plugin
Okay, enjoy!
What I wish search could do in the future:
A cool search dropdown using search-history. Can it be done FI-DD?