How that? You cannot even properly search for packages by name. It always searches the description too. Try searching for opera or even only packages that start with opera*.
I've been using Arch for almost two years and its always worked. I guess your argument may have been slightly wrong (no s after S or something perhaps).
I would, however, recommend using a wrapper like yaourt which can install from AUR too. With yaourt, iirc (I don't exactly install packages very often these days, since I have everything I need), I can just go:
I love Archlinux but I really miss aptitude.