Is there a way to use FULLTEXT in a multi-language table without giving each language its own column?

I have one column I need to search, but the language in that column varies:

```
ProductID    int
Description  nvarchar(max)
Language     char(2)

```

`Language` can be one of: `en`, `de`, `it`, `kr`, `th`

Currently I build a concordance and use that for searching. But this is only for English, German and Italian, and even for those it doesn't support stemming. Everything else uses `LIKE '%searchterm%'`, and I'm trying to improve on that.

I'm using SQL Server 2005.