Thank you for your offer to help!
I will have to think about it, but adding a new translation is a lot of work. I have in many cases programed Sweet Science assuming that there are only two languages. Also, adding any new language should only be attempted when the whole game is complete...
If you want to help improving the Russian (and/or Ukrainian) translation of TLS, however, that would be great and fairly easy to implement. In this case, please contact me on Twitter or with the contact form on my webpage. Then I can send you the necessary files by email. You don't have to know any coding for that, don't worry! It's quite nifty and the game files themselves will not be altered. (Otherwise the game would run in only one language.)