To get exact match you can

    % cabal list ^QuickCheck$ -I
    * QuickCheck
        Synopsis: Automatic testing of Haskell programs
    ...

But not the prefix/suffix/regexp matching is in your power for
searching. e.g.

    % cabal list ^Cabal
    * Cabal
        Synopsis: A framework for packaging Haskell software
    ...
    * cabal-install
        Synopsis: The command-line interface for Cabal and Hackage.
    ...
    and many others