Perhaps you should try some spelling variations:
основені\\" » основні\\" (Expand Search), основі\\" (Expand Search), основе\\" (Expand Search), основіені\\" (Expand Search), основеені\\" (Expand Search)
основеіе\" » основі\" (Expand Search), основе\" (Expand Search), основні\" (Expand Search), основіеіе\" (Expand Search), основееіе\" (Expand Search)
основеіеіа\\" » основііа\\" (Expand Search), основеіа\\" (Expand Search), основнііа\\" (Expand Search), основіеіеіа\\" (Expand Search), основееіеіа\\" (Expand Search)
основ\\" » основі\\" (Expand Search), основе\\" (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: "\"\\"((\\\"ґрунтова ((основені\\\" OR основеіе\\") OR основеіеіа\\\")) OR (\\\"ґрунтова основ\\\"))*\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова ((основені\ OR основеіе ) OR основеіеіа\ )) OR (\ ґрунтова основ\ ))*.