Given the number of TLA's in computing I humbly submit that this limitation might be worth looking at.
The regular search seems to use stop words rather than a word length limit, I presume it uses something like tfidf vectors and doesn't include common words such as "it" and "on" in the vector - searching for these thus returns 0 results.
Might whatever method is used to allow searching for short words in the regular search be applied to the super search?
rl.