The most important feature is the suggestion of similar words in the case of spelling e.g. a game name different from how it is spelled within lgdb.org. The suggestion can be found at the top of the search results. At the moment the search index has to be build so some words are still missing.
Another feature is a so called faceted search positioned at the right of the the search page. Now the search results can be filtered dynamically based on game attributes. One can even start with no search-word and look for games, just by applying the filters.
On the other hand its not possible to sort the search results by rating, title or when they where last updated.