>> These corpora are pretty hard to come by and expensive to produce. Actually there are lot of texts translated by qualified translators in several languages,

>> These corpora are pretty hard to come by and expensive to produce. Actually there are lot of texts translated by qualified translators in several languages, for political reasons: EU's commission websites, perhaps some other countries official websites. You can have a look at Linguee [0] which uses this to provide translation suggestions: [0] https://www.linguee.com/ https://www.linguee.com/