TruSEO doesn’t work properly

Hello and many thanks for the great idea with TruSEO.

Are you sure that this function works with other languages than English?
It seems that it can’t serve languages where words can have prefixes, suffixes and endings and can change their roots like Russian, Spanish, Romanian and so on.

I tried it with Russian language: it showed that, for example “парус” (sail) and “парусом” (by sail) are 2 different words for it. But, for example, Google understands forms of words.

As well, there are a lot of linking words in my texts, but TruSEO says that there is no linking words.

There are a lot of misunderstandings with it’s other analyses.

Could you explain how it works with other then English languages, please.