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)
основеееіеіа\\" » основіеееіеіа\\" (Expand Search), основееееіеіа\\" (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 основеееіеіа\\\") OR основеіні\\\")) OR (\\\"ґрунтова основ\\\"))*\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова ((основеі\ OR основеееіеіа\ ) OR основеіні\ )) OR (\ ґрунтова основ\ ))*.