I've learned to write a vector on one line as for example $(a,b,c)$. This can get very confusing if each component of the vector is an expression of several terms like this: $(a+b,b+c,a+b)$ since the commas get mixed up in the mess of signs.
Adding more parentheses doesn't really help since it gets mixed up with the already written parentheses like $((a+b),(b+c),(a+c))$. It almost doesn't look confusing here, but with more complex expressions, it can look very messy.
What I usually do is to write something like $([a+b], [b+c], [a+c])$ and then add an explanation for what the newly introduced parentheses mean, but I'd rather use a standard notation that doesn't require an explanation.
What are the alternatives that can be used without needing extra explanation?