chẳng qua 
only, just, that is all there is to it [ chẳng ] : [=không] not
[ qua ] : after, by, through, over; last (week, day, etc.); to pass by, go across, cross over
Most Common Compounds Set 1:
Most Common Compounds Set 2 :
chẳng qua only, just, that is all there is to it