Full text indexing with Japanese characters problem

Hi all,
I am quite experimented with SQL Server, but not that much with full
text indexing. After some successful attempts with english fields, I've
decided to try it with Japanese characters. I don't know why, but it
seems to have a strange behaviour.
As in this screenshot
(http://img65.imageshack.us/img65/980/jap3xt.gif), the CONTAINS
function does not seem to return only fields with an exact word match
of the given "word" (query), but also strange results which does not
even correspond to the query. Can anybody help me with that one?
Thanks! :)
ibizaHi again,
I did some other tests with english this time, and they all seemed
successful...until this one :
http://img155.imageshack.us/img155/2001/untitled1tx.gif
Why is the CONTAINS returning no row at all' ;_;
This makes me doubt about the validity of all the previous succesful
queries I made...Could there be missing words, if some queries like the
one with 'now' isn't returning any at all?
What's the problem with full text indexing? :S
And yes I did repopulate all the indexes before running this query...
help would be greatly appreciated!
thanks
ibiza