Pour boiling water over vermicelli rice noodles and soak 15 minutes.
Drain and rinse. Divide into 8 equal portions. Fill a wide, shallow bowl with cool water. Working with one spring-roll wrapper at a time, soak until pliable, 20 seconds.
Transfer to a flat surface and smooth.
Place a layer of fillings on bottom third of wrapper, leaving a 1 1/2-inch border. Top with a portion of noodles and another layer of fillings.
Fold bottom of wrapper tightly over fillings.
Roll over once, tuck in sides, and finish rolling. If desired, add 3 fresh chives and continue rolling to enclose them.
Transfer roll to a plate and cover with a slightly damp paper towel. Repeat to make 8 summer rolls.
Serve immediately with dipping sauces, or refrigerate, up to 2 hours.
