\w{2,}any word character, repeated at least 2 times
\(the literal ( (4010 / 508 / 2816)
.+?any character (except for line terminators), repeated at least once
\)the literal ) (4110 / 518 / 2916)
Positive Lookahead(?=(\+\w{2,}|$)) \+the literal + (4310 / 538 / 2B16)
\w{2,}any word character, repeated at least 2 times
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string
g modifier: global. Finds all matches instead of stopping after the first