Upon motion and showing by affidavit that service cannot be made with reasonable diligence by any other method provided by statute, the court may permit service to be made (1) by leaving the process at the defendant's usual place of residence and mailing a copy by first-class mail to the defendant's last-known address, (2) by publication, or (3) by any manner reasonably calculated under the circumstances to provide the party with actual notice of the proceedings and an opportunity to be heard.
Neb. Rev. Stat. §§ 25-517.02