Perhaps you should try some spelling variations:
hieu suat » hieu luat, hieu qua
khach san » khach hang, thanh san
kiem toan » ke toan, kiem tra
van hieu » cao hieu
van kiem » va kiem, van kien, van hien
han san » hanh san, hai san, tan san
tin » tinh
luan » quan, lan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung luan van hieu suat ) OR ( trinh ((han san) OR (khach san)) van kiem toan ))~.
• Adding a wildcard symbol may retrieve word variants: (( tin dung luan van hieu suat ) or ( trinh ((han san) or (khach san)) van kiem toan ))*.