Perhaps you should try some spelling variations:
основеі\\" » основі\\" (Expand Search), основе\\" (Expand Search), основні\\" (Expand Search), основіеі\\" (Expand Search), основееі\\" (Expand Search)
основеііеі\\" » основііеі\\" (Expand Search), основеіеі\\" (Expand Search), основнііеі\\" (Expand Search), основіеііеі\\" (Expand Search), основееііеі\\" (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 ((основеі\\\" OR основеііеі\\\") OR основеіеіа\\\")) OR (\\\"ґрунтова основ\\\"))~\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова ((основеі\ OR основеііеі\ ) OR основеіеіа\ )) OR (\ ґрунтова основ\ ))~.