Some stuff from pre-launch is consistent and others not, for example searching BPRD brings up all old B.P.R.D. volumes but it does not bring up the new B.P.R.D.: Vampires series that was added after launch, the new series can only be found by typing the name with periods. Another example would be Spider-Man or X-Men, if you type Spiderman or Xmen nothing relevant comes up and while users from most countries are used to typing the dash not all countries actually use the dash.
I've started bypassing this by adding aliases to affected pages but this is not exactly ideal so hopefully this can be fixed.