Hi, so I was trying to book a flight with the following itinerary:

5th July: Bahrain to Amsterdam
10th July: Amsterdam to Kuala Lumpur
26th July: Kuala Lumpur to Bahrain

However, no matter how I change or modify my itinerary, it will just show "No fare can be found for the flights and/or cabins you selected. Please search again and select another cabin and/or different flights. (5685 - 2201)". It is restricted to book the above flight? Or the only option for me is to book them separately:

Round trip between Bahrain and Amsterdam, then round trip between Bahrain and Kuala Lumpur?

Seek kind helps from everyone here, thank you.