When you upload a remix (“Submit a Remix” page), you have to search for the samples you used. In my case I used “My Apocalypse Now” vocals from Kaer Trouz.
So I search for the title “My Apocalypse Now”, and this is what I get:
…
* My Apocalypse Now (Vertical Sp… by Kaer Trouz (Kaer_Trouz)
* My Apocalypse Now (Vertical Sp… by Kaer Trouz (Kaer_Trouz)
* My Apocalypse Now (Vertical Sp… by Kaer Trouz (Kaer_Trouz)
* My Apocalypse Now (Vertical Sp… by Kaer Trouz (Kaer_Trouz)
…
As you can see, there is no way to distinguish the vocals between these four results (the titles are abbreviated).
If I search for “My Apocalypse Now vocal” I get lots of results with only “vocal” in the title.
I also tried entering the exact sample title, and again got lots of results.

Finally I had to figure out by myself that the last one was indeed the vocal track.

did you try just using the artist name?? also, you can look up the page the vocals came from and there is always a box that says :
i used this sone in….

pick remix and i will get you started!

yea, I saw that yesterday too, I’m on it, should be in by tomorrow.