Today selo/village Buzivka = Бузівка > Zhashkivskij raion/district = Жашківський район > Cherkaska oblast/region*** = Черкаська область > Ukraine, zip code 19243http://beket.com.ua/wp-content/uploads/buzovka--121117--08.j...
LDS has filmed Orthodox Church Registers 1875-1921:https://familysearch.org/search/catalog/964477
How is your Russian? Actually these are Old Church Slovanic.
рождения, бракосочетания, смерти
birth, marriages, deaths
Kosma Nikitov/Nikitovych (son of Nikita)Goncharuk
Козма Ґончарук (Никитович -Никита )
Give it a try.
Although following site is geared for Galician Heritage, there is a tutorial re Old Church Slovanic, which should prove helpful. http://www.halgal.com/vitalrecords.html
There are also some Soviet Era Records - Civil Registration (1921-1922)https://familysearch.org/search/catalog/1283965
***Cherkaska oblast/region is one of the regions broken off from the Old Kyivskaya gubernia.
There is still a Goncharuk/Honcharuk listed as living in Buzivka:
ГОНЧАРУК МАРИЯ ИВАНОВНА 0 1941-09-23 БУЗІВКА КОЛГОСПНА
Honcharuk, Marya (daughter of Ivan) dob 9/23/1941
BTW Grandfather's surname is rooted in Eastern Slavic word HONCHAR, which means POTTER.