Major search engines (google/bing) give out relevant pages based on key words in the search query. Most Russians use Russian language key words and Chinese use Mandarine (standard Chinese) in their searches. These search engines prefer to give out relevant pages in the language used in the key words. Pages written in other languages generally rank lower in local searches.
Hubpages accepts submission in English language so web traffic is mostly coming from English speaking countries. It is possible to get traffic from Russia/China if your hubs are written about topics related to these countries, for example - travel guide to Moscow or Chinese culture. Another way is to manually submit your hubs for indexing to Yandex (Major Russian search engine) or Baidu (Chinese search engine).