Perhaps you should try some spelling variations:
основеі\\" » основі\\" (Expand Search), основе\\" (Expand Search), основні\\" (Expand Search), основіеі\\" (Expand Search), основееі\\" (Expand Search)
основеіные\\" » основіные\\" (Expand Search), основеные\\" (Expand Search), основніные\\" (Expand Search), основные\\" (Expand Search), основіеіные\\" (Expand Search), основееіные\\" (Expand Search)
основеііеа\\" » основііеа\\" (Expand Search), основеіеа\\" (Expand Search), основнііеа\\" (Expand Search), основіеііеа\\" (Expand Search), основееііеа\\" (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 ((основеі\\\" OR основеіные\\\") OR основеііеа\\\")) OR (\\\"ґрунтова основ\\\"))\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова ((основеі\ OR основеіные\ ) OR основеііеа\ )) OR (\ ґрунтова основ\ )).