Perhaps you should try some spelling variations:
структур » структури (Expand Search), структуры (Expand Search), структура (Expand Search)
структуриа » структурииа (Expand Search), структурыиа (Expand Search), структураиа (Expand Search), структури (Expand Search), структура (Expand Search), структуры (Expand Search)
структурыа » структуриыа (Expand Search), структурыыа (Expand Search), структураыа (Expand Search), структуры (Expand Search), структура (Expand Search), структури (Expand Search)
структурыыа » структуриыыа (Expand Search), структурыыыа (Expand Search), структураыыа (Expand Search), структуры (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 ( (структуриа OR (структурыа OR структурыыа)) схема ))~".
• Adding a wildcard symbol may retrieve word variants: (( структур схема ) OR ( (структуриа OR (структурыа OR структурыыа)) схема ))*.