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)
структураи » структуриаи (Expand Search), структурыаи (Expand Search), структурааи (Expand Search), структури (Expand Search), структура (Expand Search), структурам (Expand Search)
структурааи » структуриааи (Expand Search), структурыааи (Expand Search), структураааи (Expand Search), структури (Expand Search), структура (Expand Search), структурам (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 (структураи OR структурааи)) схема ))~".
• Adding a wildcard symbol may retrieve word variants: (( структур схема ) OR ( (структурыа OR (структураи OR структурааи)) схема ))*.