Perhaps you should try some spelling variations:
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)
основеіеіа\" » основіеіа\" (Expand Search), основееіа\" (Expand Search), основніеіа\" (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 ((основеіа\\\" OR основеі\\") OR основеіеіа\\")) OR (\\\"ґрунтова основ\\\"))*\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова ((основеіа\ OR основеі ) OR основеіеіа )) OR (\ ґрунтова основ\ ))*.