Search in database for more then one column (EFCore, Postgresql)

if (!string.IsNullOrWhiteSpace(query.Search))
 {
     var searchTxt = $"%{query.Search}%";
     queryDb = queryDb.Where(e =>
         (!string.IsNullOrEmpty(e.Name.FirstName) && EFCore.Functions.ILike(e.Name.FirstName, searchTxt)) ||
         (!string.IsNullOrEmpty(e.Name.LastName) && EFCore.Functions.ILike(e.Name.LastName, searchTxt)));
 }

var searchTerms = query.Search.Split(' '); // split the search phrase into individual words
    queryDb = queryDb.Where(e =>
        searchTerms.Any(term => 
            EFCore.Functions.ILike(e.Name.FirstName ?? string.Empty, $"%{term}%") || 
            EFCore.Functions.ILike(e.Name.LastName ?? string.Empty, $"%{term}%")
        )
    );