I don't know if this can be controlled here, it may be an issue on the software but Pamac and Octopi have the same issue when searching for software. My latest example is Xtreme Download Manager.
I search for "xtreme" on both Octopi and Pamac. Octopi returns extremetuxracer. Pamac displays a list of unrelated software.
If I search 'pacman -Ss xtreme' it comes up at the bottom of the list and shows me the package name is 'xdman'. If I search 'xdman' on either Pamac/Octopi it comes up right away. Just seems like a big oversight not to search the description of the packages not only package names. Especially for GUI applications where the user may never know the exact obscure package name, just the general name of the software that they are searching for.