Perhaps you should try some spelling variations:
основеі\\" » основі\\" (Expand Search), основе\\" (Expand Search), основні\\" (Expand Search), основіеі\\" (Expand Search), основееі\\" (Expand Search)
основеіеі\\" » основіеі\\" (Expand Search), основееі\\" (Expand Search), основніеі\\" (Expand Search), основіеіеі\\" (Expand Search), основееіеі\\" (Expand Search)
основеііеіа\\" » основііеіа\\" (Expand Search), основеіеіа\\" (Expand Search), основнііеіа\\" (Expand Search), основіеііеіа\\" (Expand Search), основееііеіа\\" (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 основеіеі\\\") OR основеііеіа\\\")) OR (\\\"ґрунтова основ\\\"))~\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова ((основеі\ OR основеіеі\ ) OR основеііеіа\ )) OR (\ ґрунтова основ\ ))~.