OK, OK, I concur! So there are a few sequences of consonants with no vowel that can be considered a word. However, there aren't many. The whole mechanism can remain the same, except that, if you're left with a string of consonants between words, that doesn't immediately means failure. Now you'll have to do an additional check to see if such a string exists of a sequence of these exceptions. I think that they are such a small minority that, for speed, it must be worth it extracting them all from a dictionary and storing them separately in a data file, before you even start.
Am I alone, in feeling that the whole search system as I proposed, is very similar to how a regex may try to match a pattern, in a "penny machine"? Pick a candidate, try every possibility with it in turn, backtrack...