search engine issue

When I try to use the search engine to search for M46 like I do on pretty much all sites, the search engine won't look that up as it says the phrase is too short.
M46 works on the other sites. I don't send anyone here to look at m46 stuff as no one can even search for it.
Obviously this can be fixed since it works on all the other sites. But can someone here fix this please.
Author: Cuda Hunter