đừng lo chuyện đó 
don’t worry about that [ đừng ] : do not, let us not, don’t
[ lo ] : (1) worried, anxious, afraid; to worry, fear, frighten; (2) to care about, look after
[ chuyện ] : story, conversation, situation, issue, matter; to talk, converse, communicate
[ đó ] : that, those, there, that
Most Common Compounds Set 1:
Most Common Compounds Set 2 :