Disambiguated and non-disambiguated corpora
A vast part of the corpora is non-disambiguated, i. e. forms with the same orthography retain their ambiguity regardless of the context (e. g., печь infinitive and noun, печи Gen. Dat. and Loc. Sg., Nom. and Acc. Pl.). There is some "noise" in the search results due to such texts. You may choose to search only disambiguated texts. In the search results disambiguated and non-disambiguated texts are always marked explicitly.