Language detection and translation is not proper

Question

I am using Azure Translator Service , however I see language detection and translation is not happening properly

I am using python, I have a define a function translate_text which calls Azure translator api and returns the translated text

I am not passing from-language parameter since I want the API to figure out the source language and translate it , however the detection and translation both are happening incorrectly.

if you see below example , the text I am sending is Slovak, but it detected pl, can you please help me undertand how to make this better.

Call to Translate API

a = translate_text("Urobit aj dalsie pokrocilejsie skolenia.")

display(a)

Response

https://api.cognitive.microsofttranslator.com/translate

[

{

    "detectedLanguage": {

        "language": "pl",

        "score": 0.9

    },

    "translations": [

        {

            "text": "Urobit and further shortened the skolenia.",

            "to": "en"

        }

    ]

}

]

'Urobit and further shortened the skolenia.'