You can use a proxy in Key Collector to collect key phrases from WordStat from Yandex and compose a semantic kernel.
Here you can buy proxies of such countries as Russia, USA, Ukraine, Germany, China, India, Canada, France, Netherlands, Great Britain, Australia, Japan. There are a lot of ways to use IPv4, IPv4 Shared and IPv6 proxy, for example, if some sites or services are blocked in your country, then you can buy proxy of another country and bypass this lock.