Perhaps you should try some spelling variations:
основнііа\" » основні\" (Expand Search), основінііа\" (Expand Search), основенііа\" (Expand Search)
основеіа\\" » основі\\" (Expand Search), основе\\" (Expand Search), основні\\" (Expand Search), основіа\\" (Expand Search), основеа\\" (Expand Search), основніа\\" (Expand Search), основіеіа\\" (Expand Search), основееіа\\" (Expand Search)
основеі\\" » основі\\" (Expand Search), основе\\" (Expand Search), основні\\" (Expand Search), основіеі\\" (Expand Search), основееі\\" (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 (основнііа\\" OR (основеіа\\\" OR основеі\\\"))) OR (\\\"ґрунтова основ\\\"))\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова (основнііа OR (основеіа\ OR основеі\ ))) OR (\ ґрунтова основ\ )).