Trying to book VANCOUVER - OKINAWA/TOKYO - PRAGUE (BTC conf) - KRAKOW - TORONTO flights & it's a major pain 😭

Both Air Canada & Travel agent can't do it 😭 (as multi city). Emirates site borked too; Lot is pricy, and for any multi-city I can't see prices for diff flights so its choosing in the dark

I may need to do one ways, any tips guys?