I am wondering how to best index a multiple word term that also contains a sub-term that is to appear in the index. For example: "Philadelphia Railroad Commission".

I'd want to index the three word term, but also "Philadelphia" and "Railroad" as separate index entries.

After indexing the three word term, I trying to index one word fails (it seems).

Is it possible to nest or concatenate multiple {} index entries?

Thanks in advance for any help/suggestions.

John