Has anyone managed to use this successfully??

I decided to search for PHX-DAD, hoping to get a decent fare that would post as a bulk fare (would it?)

1. If I select 1 adult, 1 room, the are no search results. I have to add a 2nd traveler to see anything.

2. The only options are economy or basic economy. No premium econ, no business.

3. It gave me hotels in Da Nang, but the flights were all to and from SYX (which is in China). The good folks at UA are aware that all Asian countries aren't the same, right? Admittedly it's as close as you can get to Da Nang without leaving China, but I was kind of hoping to fly all the way there.