Perhaps you should try some spelling variations:
структур » структури (Expand Search), структуры (Expand Search), структура (Expand Search)
структурыа » структуриыа (Expand Search), структурыыа (Expand Search), структураыа (Expand Search), структуры (Expand Search), структура (Expand Search), структури (Expand Search)
структурыи » структуриыи (Expand Search), структурыыи (Expand Search), структураыи (Expand Search), структури (Expand Search), структуры (Expand Search), структура (Expand Search)
структуриыи » структурииыи (Expand Search), структурыиыи (Expand Search), структураиыи (Expand Search), структури (Expand Search), структуры (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 ( (структурыа OR (структурыи OR структуриыи)) схема ))~".
• Adding a wildcard symbol may retrieve word variants: (( структур схема ) OR ( (структурыа OR (структурыи OR структуриыи)) схема ))*.