Sublime Text 3 - Quick Add/Find Match behavior
Solution 1:
The trick is to start with an empty selection, with your cursor just to the left of the word you want to select. Then, hit Ctrl⌘G (or AltF3 on Windows/Linux) to select all instances of that word:
or hit ⌘D (CtrlD on Win/Lin) to begin selecting them one at a time.