Perhaps you should try some spelling variations:
структур » структури (Expand Search), структура (Expand Search)
структуры » структуриы (Expand Search), структураы (Expand Search), структури (Expand Search)
структуриы » структурииы (Expand Search), структураиы (Expand Search), структури (Expand Search), структура (Expand Search), структурам (Expand Search)
структуриа » структурииа (Expand Search), структураиа (Expand Search), структури (Expand Search), структура (Expand Search), структурам (Expand Search)
структурою » структуриою (Expand Search), структураою (Expand Search), структури (Expand Search), структура (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( структур схема ) OR ( (структуры OR (структуриы OR (структуриа OR структурою))) схема ))~".
• Adding a wildcard symbol may retrieve word variants: (( структур схема ) OR ( (структуры OR (структуриы OR (структуриа OR структурою))) схема ))*.