All perfect praise be to Allah the Lord of the Worlds. May His peace and blessings be upon our Prophet Mohammad and upon all his family and companions.

Basically,  the word "and" implies sharing the same judgment absolutely, whether the things in question come together or individually. If we said, "Don`t eat vinegar and salt," it means that it is banned to eat them together or separately; this is unless there is evidence indicating banning eating them together. For more details, check "Al-Burhan, Vol.1:P.51 by Al-Juwayni" and "Al-Ibhaaj, Vol.1:P.338 by Al-Sobkhi." And Allah the Almighty knows best.