How to search for Zitnan OR Žitňan?

[bkleine (Bernhard Kleine)]

Is it possible? Bernhard

[Siedlerchr (Christoph)]

author=Zitnan or Žitňan

See the documentation: https://docs.jabref.org/finding-sorting-and-cleaning-entries/search

[bkleine (Bernhard Kleine)]

Thank you very much!