Searching movie by title, sql vs http access

Question

My doubt is, when I make a movie search by title in a another different language than English, why the search is more precise if use HTTP access than SQL ?

For example i want to retrieve info about the Movie "El gran Robo" (spanish title) original title "Flypaper".

case 1) using SQL access

ia = IMDb(accessSystem='sql', uri = "mysql://devel:password@localhost/imdb")
movies = ia.search_movie("el gran robo")
for m in movies:
  print m['titles']

OUTPUT:

• 7 uomini e un cervello
• El gran rabo
• List item
• Mathias Sandorf
• La gran revista
• Green River
• Green River
• The Grim Reaper
• The Grim Reaper
• La commare secca
• Anthropophagus
• La verte moisson
• Granny R.I.P.
• Gehirnreflexe
• Rosso sangue
• Green River Killer
• Grammar Revolution
• German Whorefare 4
• Cuori in campo
• Grim Reaper
• Grim Reaping

case 2) using HTTP access

ia = IMDb()
movies = ia.search_movie("el gran robo")
for m in movies:
  print m['titles']

OUTPUT:

• Flypaper
• The Big Steal
• Robbery
• El gran robo del tren
• El gran robo de Lorenza
• The Bank Job
• The First Great Train Robbery
• Grand Theft Auto
• The Great Train Robbery
• Hot Money
• 7 uomini e un cervello
• The Great Missouri Raid
• Le Great Dane Robbery
• El gran río
• Después del gran robo
• Gran-Robo tonda

As you can see, the search with HTTP returned the right Movie, Flypaper.

Is it possible get the same results using SQL ?

Answer 1

Short version: some data are missing in the plain text data files.

Extended explanation in the imdbpy-help mailing list: http://sourceforge.net/p/imdbpy/mailman/message/33067664/