I use the old version of term search too, because it finds more entries than the new one (don't ask me why). In fact the new version seems pretty useless to me: definitely worse than the earlier one. Inverted commas à la Google are no use on the site term search. But unless you click the "match entire phrase" box it gives you every entry containing "según" and every entry containing "intervienen". This is what you must have done, Helena. With the "match entire phrase" box ticked I got 1 result from a personal glossary:
https://www.proz.com/personal-glossaries/entry/16635407-segú...But without the box ticked I got 1696.
The third of these caught my eye: "según actúa". But the chosen translation is "as he/she acts", which IMHO is not ideal.
https://www.proz.com/kudoz/spanish-to-english/law-contracts/...If you really want to know what the glossary has, use Google as well.