After an internal research without any significant success i'd like to ask a question here.
Typing misspelled keyword or a keyword in different keyboard layout in Keywords Planner (i.e. "fkjj" or "алоо" instead of correct "алло") will result in getting correct keyword:
Search volume includes
алло, аало
So basically as i see it Keywords Planner will group keywords with errors under their correct form.
Checking the same keywords with TargetingIdeaService brings me to a different result.
Checking error form won't return me a correct form and won't give any sign of the fact that i am using error form.
Checking both correct and error forms together will give me results for both. According to those results, keywords have similar CPC and competition, they may differ in category products and services.
So, is there any way (like additional attribute or a composition of them) to bring API results to the "grouped" result that Keywords Planner returns?