Ask for what is not here
15,303 moves have a full record and 3,008 occupations have a page. That still leaves gaps, and the site is in English for now. If what you need is missing, ask for it.
Why some things are missing
A pair is left out when the two jobs share too little for the comparison to say anything, and also when they overlap so much that one is the same job under another name. Of 9,232,482 possible ordered pairs, 15,303 are published. The rest can still be computed on request — the engine has the whole classification, the site just does not publish every page.
The same goes for language. The classification exists in 27 languages and the figures are identical in all of them, because they are computed from concept identifiers rather than words. Only the labels change, so sending you a record in German or French is a translation rather than a recalculation.