Episerver find use Boosting with weights and take 3 items sometime return different results

Hi,

I don't know why Episerver find used Boosting with weights and then take 3 items sometime return different results. I think it should order by weights and result should be consistent

Example:

var itypesearch = ContentDataQueryHandler.Instance.Create()
.Search<Product>()
.ForWithWildcards(searchText, (x => x.Code, 4), (x => x.DisplayName, 3), (x => x.ProductType, 2), (x => x.Brand, 1.5))
.FilterForVisitor(language.Name).ApplyBestBets().UsingAutoBoost().Take(3)

Can somebody clarify to this question?

Regards,

Thang Le