khu vực ảnh hưởng 
sphere of influence [ khu ] : area, zone, section, site, district, quarter
[ vực ] : pit; area, region
[ ảnh ] : (1) image, picture, photograph; (2) he, him, that (young) man [=anh ấy]
[ hưởng ] : to enjoy; sound, echo
Most Common Compounds Set 1:
Most Common Compounds Set 2 :