I assume you are talking about accessing DBPedia online via http://dbpedia.org/sparql?
Note that not all the data produced by the DBPedia project is available through the SPARQL endpoint, the documentation on their Datasets Loaded page covers what is loaded and does not appear to have any Ukranian data present.
However the project does provide many datasets in many other languages, you just need to download them yourself and load them into the triple store of your choice. For Ukranian see Ukranian Downloads of DBPedia 3.9.
Note that for future reference you may prefer to start at the root of their downloads site so you ensure you always download the latest versions of the datasets.