How to combine multiple conditional query in one query for elasticsearch .net client

Question

I'm new to using elastic search. I'm using the .NET client version 8.12 (nuget package: Elastic.Clients.Elasticsearch), I'm trying to send a query based on parameters. Only add the condition if the parameter value exists. Below is the code for the query:

public class ProductSearchDto
{
    public string? Term { get; set; }
    public string? CategoryId { get; set; }
    public int? PriceFrom { get; set; }
    public int? PriceTo { get; set; }
    public int? Stars { get; set; }
    public int Page { get; set; }
    public int PageSize { get; set; }
}

The index class:

public class ProductIndex 
{
    public string Id { get; set; }
    public decimal Price { get; set; }
    public string Title { get; set; }
    public string Description { get; set; }
    public string CategoryId { get; set; }
    public int Stars { get; set; }
    public DateTime IndexedAt { get; set; } = DateTime.UtcNow;
}

Also, for the generation of the query below is the code that calls elastic search:

public async Task<List<ProductIndex>> Search(ProductSearchDto searchDto)
        {
            QueryDescriptor<ProductIndex> query = new QueryDescriptor<ProductIndex>();
            if (!string.IsNullOrEmpty(searchDto.Term))
            {
                 query
                .Match(r => r.Field(y => y.Description).Query(searchDto.Term));
            }
            if (!string.IsNullOrEmpty(searchDto.CategoryId))
            {
                query
               .Match(r => r.Field(y => y.CategoryId).Query(searchDto.CategoryId));
            }
            if (searchDto.Stars.HasValue)
            {
                query
               .Match(r => r.Field(y => y.Stars).Query(searchDto.Stars.Value.ToString()));
            }
            if (searchDto.PriceFrom.HasValue)
            {
                query
               .Range(r => r.NumberRange(z => z.Field(t => t.Price).From(searchDto.PriceFrom)
               .To(searchDto.PriceTo)));
            }
            var result = await _searchOperation.SearchIndexElastic<ProductIndex>
                (query);
            return result;
        }

I debugged the query and it always just sending one parameter although other conditions are still active. Any other ways?