Since the middle of August Flickr stopped showing search requests where my photos were displayed. Actually it shows them but there are mojibake (or кракозябры) instead of Russian words.
A detailed statistics is available to Flickr Pro-accounts, if the user asked for it. Thanks to this statistics, I found my photos at Wikipedia and at other sites.
This is how it looks on the referrer page:
English search terms are displayed correctly (it would have been weird, if it had been otherwise). Search terms 37 and 38 are undecipherable. If I click them, nothing is found, naturally.