nhân viên điều tra 
investigator [ nhân ] : (1) at the time of; (2) core, kernel, almond; (3) to multiply; (4) man, person; (5) to cause
[ viên ] : (1) [CL for for officials, officers]; (2) [CL for round objects, bullets]; (3) member
[ điều ] : (1) thing, matter, item; article (of penal code, constitution); (2) smoking pipe; (3) bird [=chim]
[ tra ] : (1) to consult, look up; (2) to fit in; (3) to add; (4) to apply
Most Common Compounds Set 1:
Most Common Compounds Set 2 :