Yes, it is. Type in "hash" in the "search" box (which isn't very good for searching) and note that you don't find any nodes titled "hash problem" but you also don't find most of the nodes with "hash" in their titles. So renaming those few nodes from "hash" to "hash problem" would make using a simple search of "hash" more useful (except, of course, that one of those nodes is a user, but ignore that for this demonstration and I'll address it below).
Of course, I've wanted to fix this problem for a long time. But I don't want to break the primary use for "search" (aka ?node=), which is to find a specific node. And lately I've been complaining that the "Search" button should really be renamed as a "Find" button. But now I'm thinking we should have both a "Search" and "Find" button and if you push "Search" it doesn't stop searching just because you had a few (or one) exact title matches. (Which also makes single-word node titles less of a "problem to be fixed".)
I'd like to disallow (or at least strongly discourage) SoPW nodes with titles that contain less than 2 (or maybe 3) words after "noise" words are removed, qw( please problem help newbie Perl bug urgent and the from error ), to just name a few.