Perhaps you should try some spelling variations:
quang tran » quang tuan, quang trung, quang thanh
tinh dung » trinh dung, tin dung, tinh huong
hieu soat » hieu suat, hieu hoat, hieu luat
kiem toan » ke toan, kiem tra
dung tan » dung toan, duong tan, dung tai
van hieu » cao hieu
tran van » luan van
tan van » tang van, luan van, dang van

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tinh dung tan van hieu soat ) or ( tinh quang tran van ((kiem soat) or (kiem toan)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung tan van hieu soat ) OR ( tinh quang tran van ((kiem soat) OR (kiem toan)) )).
• Adding a wildcard symbol may retrieve word variants: (( tinh dung tan van hieu soat ) or ( tinh quang tran van ((kiem soat) or (kiem toan)) ))*.