‎Could you please give me some sentences using "Be that as it may"? I still find difficult to understand when and why to use it.

See a translation

You can replace it with "but" or "nevertheless" or "even so" or "despite that"
"Building an orphanage will cost a lot of money but, be that as it may, these children still need somewhere to sleep".
Building an orphanage will cost a lot of money but nevertheless, these children still need somewhere to sleep".
Building an orphanage will cost a lot of money but even so, these children still need somewhere to sleep".
Building an orphanage will cost a lot of money but despite that, these children still need somewhere to sleep".