Perhaps you should try some spelling variations:
основеі\\" » основі\\" (Expand Search), основе\\" (Expand Search), основні\\" (Expand Search), основіеі\\" (Expand Search), основееі\\" (Expand Search)
основеіні\" » основіні\" (Expand Search), основені\" (Expand Search), основніні\" (Expand Search), основні\" (Expand Search), основіеіні\" (Expand Search), основееіні\" (Expand Search)
основіеі\\" » основі\\" (Expand Search), основе\\" (Expand Search), основні\\" (Expand Search), основііеі\\" (Expand Search), основеіеі\\" (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 основеіні\\") OR основіеі\\\")) OR (\\\"ґрунтова основ\\\"))\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова ((основеі\ OR основеіні ) OR основіеі\ )) OR (\ ґрунтова основ\ )).