Perhaps you should try some spelling variations:
структур » структуры (Expand Search), структура (Expand Search)
структуриа » структурыиа (Expand Search), структураиа (Expand Search), структура (Expand Search), структуры (Expand Search), структурою (Expand Search)
структури » структурыи (Expand Search), структураи (Expand Search)
структураиа » структурыаиа (Expand Search), структурааиа (Expand Search), структура (Expand Search)
структурам » структурыам (Expand Search), структураам (Expand Search), структура (Expand Search), структуры (Expand Search), структурою (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 ( ((структуриа OR структури) OR (структураиа OR структурам)) схема ))~".
• Adding a wildcard symbol may retrieve word variants: (( структур схема ) OR ( ((структуриа OR структури) OR (структураиа OR структурам)) схема ))*.