Help me name an Underworld song

[jonathanuw]

The song was released during or before 1997 and contains a mumbled phrase that's repeated throughout the middle of the song.

It could be any or all of the following as it appears to change as repeated:
Run to china
Rubber china
I'm tryin'-a
My vagina

There's a second voice that overlaps and says something like:
I'm trying
Love train

Please tell me which song this is...

I found an old mix tape someone made me in college and was turning it into a playlist, but I don't seem to have this particular song.