You say "Viel Glueck und auf Wiedersehen."
Un yoku, sayonara. (運良く, さようなら.) hope this helps.
I only know japanese, and i don't know which language you wan't to know.
In Polish, you can say "Powodzenia" for good luck and "Do widzenia" for goodbye.
In Cree, you can say "nitanis, acosin" to say goodbye and good luck to someone.
Goodbye - Tchau Good luck- Boa sorte
In Dutch, you can say "tot ziens en veel succes" for goodbye and good luck.
In Maori, "goodbye" is "haere rā" and "good luck" is "kia kaha."
Good Luck - buena suerteGoodbye - hasta luego (See you later)adiós (goodbye)
Good luck with that = viel Glück damit
In Bavarian German, you can say "Servus" or "Pfiat di" to say goodbye. Both are commonly used greetings in Bavaria.
Lah Gorn laa Dee Chohk
"au revoir et bonne chance"
"Viel Glück"
Viel Glück !