This is a pretty simple regex question, I think. In Vim, if I want do a search that matches planA or planB, I know that I can do this:

/plan[AB]

This works because the regex allows for either A or B as its set of characters.

But how can I specify one of two complete strings? For example, to match both planetAwesome and planetTerrible, this doesn't work:

planet[Awesome|Terrible]

... because it's looking for planetA or planetw or planete, etc. Nor does this:

planet['Awesome'|'Terrible']

This will match both of these, along with planetAnythingHereAsLongAsItsJustLetters:

planet\([a-zA-Z]*\)

But how can I match only strings that match planetAwesome or planetTerrible exactly?