Perhaps you should try some spelling variations:
hieu soat » hieu suat, hieu hoat, hieu luat
trinh han » trinh quan
tien cong » thien cong, trien cong, tien luong
dang kiem » bang kiem, mang kiem, dang dieu
kiem soat » kiem toan
lang van » tang van, hoang van, giang van
dang van » hoang van, hang va
cong nam » dong nam, uong nam, thong nam
nam dang » nam dan, nam danh, nam dong

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( trinh han ((lang van) or (dang van)) hieu soat ) or ( tien cong nam dang kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( trinh han ((lang van) OR (dang van)) hieu soat ) OR ( tien cong nam dang kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (( trinh han ((lang van) or (dang van)) hieu soat ) or ( tien cong nam dang kiem soat ))*.