I think you have a very good grasp of the Spanish language
I just checked AMOS.
International Spanish: 'Estas palabras deben aparecer exactamente igual'
Mexican Spanish: 'Estas palabras deberían aparecer como palabras completas'
'completas' and 'enteras' are (near) synonims.
You can make a contribution to the international Spanish language pack maintainers.
I still have 30 contributions I recently made to the international Spanish language pack with status = 'new'
I think they may have gone for a long holiday
I congratulate you for pinpointing possible issues with the Spanish language packs. You are helping many Spanish-speaking Moodlers to get a better Moodle.
I only regret I did not study French (nor italian nor German) when I was young