services search nodes i18n language

hi,

I have a multilingual site built with i18n.
When i do a normal search, my site searchs for the nodes with the defined language and it is ok.

But, when i do a search trougth services, using search.nodes, the service returns only the nodes with the main language, the others never show up, even if I change the language.

Is there a way to correct this issue?
or at least, to add a field as argument to look for a specifed language in node's language field?

thanks in advance.

ps:
i posted here also: http://drupal.org/node/382406