Ok just trying to be helpful, never done this before, but I noticed when I type
a word like 'authoritarian' and then later I type 'authority' it brings up
'authoritarian', so my suggestion is to have it match the word that is shortest
and closest to the word being typed, once its different move on to the next
closest matched word, then once that's different move on to the next, that way
instead of only giving a one word suggestion or match you get all of them.
So in other words if both aforementioned words have been typed and I start to
type 'author' it should bring up 'authority' and if I continue to type
'authorita'it brings up 'authoritarian'. 
Hope that makes sense, just something to think about, would make typing papers a
lot faster.