Google linguistic strike - bug or feature?

Having decided to sort out the English-language article on the methods of learning foreign languages , the translator from Google sent it to her. I look - something is wrong, one sentence has disappeared somewhere. Updated page - did not help. I copied it directly into the translator - and I was terribly surprised! He completely refused to translate it! Here is a suggestion, at first glance, completely harmless:
Cummins cognitively demanding communication.
Checked on other browsers, from other IP_address - the result is the same. You can check it yourself. Thought over the explanation of this strange phenomenon. So far only four options came to mind.

1. The CIA conspiracy . According to the Jackson-Vanik amendment, there is a secret list of the Madonna-Fan, according to which it is prohibited to translate especially secret scientific theories into Russian.
   System bug The combination of these words forms a binary code that disables the translation program.
   UFO intrigues .
   Easter egg . A surprise from the developers of the service like a joke with a notepad in Windows XP, which allows, for example, to easily prove that Spout’s favorite is Microsoft's secret agent:
   
   We type by hand in a notebook the following text: Taki pots that Spout
   save the file   under any name
   close the document
   open the saved document and see the proof. :)
   
   True, all these options are very implausible. Maybe Habrabrabr readers will come up with a more reliable explanation?
   By the way, after publications on Habrahabr and Filolingvii ridiculed the glitches of the translator from Microsoft, the translation from English into Russian was excluded from the service (although the reverse version remained).
   Now it remains only to join the company of the best oaks, which they have collected for us on Windows Live, as stated in the “Runner” advertisement, which is constantly loaded on the same page with the rams in philolinguia: