woody125....there's at least one way to do this but it's kind of rudimentary. And it'll only cover threads where "Russia" has been used in the past.

First you need to do an advanced search in all open forums typing in "Russia" as your key word. You'll get back a rather large list of threads where someone used the word and then you'll have to cull through the threads and decide which are worth subscribing. As future posts are made to these subscribed threads, they'll pop up in your MyFlyerTalk Subscribed Thread area. But the threads will continue to pop whether or not the word "Russia" ever appears in the thread again. And then you have to continue this search/subscribe process on a weekly basis to capture any recent threads where "Russia" was used.
I don't know of a way to capture current and future threads where the word appears and have it automatically added to your Subscribed Threads list. But we have a LOT of smart people here on FT who are familiar with the vB software that may be able to help here.