Well, After much experimenting and a little help, I got it to work!
Mac Users: Here is what I have: 1. Download Asian Adventures twice.
2. Click to open Macintosh HD (for me it is on my desktop).
3. Click to open Applications
4. With mouse, right click, without mouse, control click on The Sims 4
5. Click to open Show Package Contents
6. Click to open Contents
7. Click to open Delta
8. Click to open GP04
9. Click to open Worlds
10. Click to open Areas
11. Move the GP04_VampireWorld_01.world in a folder for back up
12. Place the GP04_VampireWorld_01.world from the Asian Adventures download in
13. Close out and begin again. Click on the Macnintosh HD
14. Click on Applications 15. Right click, with mouse, or press control and click on Sims 4 16. Click on Show Package Contents 17. Click on Contents 18. Click on GP04 19. Move the file into your back up folder 20. Place the second download of the world in 21. You only need one Asian Adventures folder to go into your mods area.
Here is how I saved my back ups. I made a folder called Forgotten Hollows Back Up. Inside that folder I have two more folders. One is called Sims 4 Content Delta, One is called Sims 4 Content GP04. This way I can remember where to place them.