Perform the following settings:
Tools -> Options -> Retrieving Metadata -> Metadate Retrieval Setting
Set checkbox: Get text and artwork metadata from internet web sites
Set language: ru

Or:
Maintain Library -> Metadate Retrieval Setting
Set checkbox: Get text and artwork metadata from internet web sites
Set language: ru

After a complete update of the library all the information received from the Internet appears only in English.

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Titles in English:

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Click Get Online Video Metadata, the following window appears:

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Click Search and receive information in Russian:

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After saving the titles in Russian:

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The information is not accepted in Russian automatically.