They are similar, but not necessarily synonymous. Veering away implies an intent to avoid. Shifting and changing can be attempts to evade in some contexts, but they don't necessarily imply the same intent as veering away from a discussion topic.

It can be used in that context - "She tried to veer the conversation elsewhere" - Veer and Shift can be interchangeable (best) when referring to direction/movement - "She veered left" "She shifted left"

Well, you know the key word in Farsi and you would succeed wherever you use it ;)

wkwkwkwk sama-sama Amene wwkwkwk :D You should response it with Farsi :p I only know the word "jooonam" wkwkkwkw

Terima Kasih wkwkwkk!! I can learn English and Indonesian simultaneously. Killing two birds with one stone ;)