Answer
No — Oracle's own language-parameter support (the mechanism that lets you view Oracle tooling/components in different languages) only affects how Oracle's own interface text is displayed; it has no ability to translate the actual data values stored in your tables. If a value was entered and stored as English text, it stays stored as English text — there's no query-level mechanism to translate stored data values into another language on the fly. Genuine multi-language data support requires the data itself to be captured and stored per-language at data-entry time (the way IFS's own translation mechanisms work for things like custom field prompts), not retrofitted at query time.