Operation request: Multi-character substitution

**Is your operation request related to a problem? Please describe.**
Currently when working with CTF Challenges, where numbers are often represented like

'three' 'two' 'one'
'th' 'tw' 'fi' 'si' 'se'

I need to do a manual processing step in order to solve.

This prevents me from sharing the url-as-solution to others.

**Describe the solution you'd like**
I would like to see a multi-character substitution operation added, with some pre-selected dictionaries + custom dictionary for common cases.

**Describe alternatives you've considered**
Manual fixups.

**Example input and output**

`thsetwfinize` -> 372590
`thrsevtwofivninzer` -> 372590
`threeseventwofiveninezero` -> 372590