Perhaps you should try some spelling variations:
основеі\\" » основі\\" (Expand Search), основе\\" (Expand Search), основні\\" (Expand Search), основіеі\\" (Expand Search), основееі\\" (Expand Search)
основеіеные\" » основіеные\" (Expand Search), основееные\" (Expand Search), основніеные\" (Expand Search), основіеіеные\" (Expand Search), основееіеные\" (Expand Search)
основные\\" » основе\\" (Expand Search), основні\\" (Expand Search), основіные\\" (Expand Search), основеные\\" (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 (основные\\\" OR основеіеные\\"))) OR (\\\"ґрунтова основ\\\"))\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова (основеі\ OR (основные\ OR основеіеные ))) OR (\ ґрунтова основ\ )).