buổi đi chơi 
outing (to have fun) [ buổi ] : [CL for performances, events]; session, event; half a day
[ đi ] : to go; (particle used to form commands, suggestions)
[ chơi ] : to go out, be out, go for a walk, have a good time, play, amuse oneself (with); fun, amusement, play, game
Most Common Compounds Set 1:
Most Common Compounds Set 2 :