Perhaps you should try some spelling variations:
tranh nghiep » doanh nghiep, trinh nghien, trac nghiem
nghiep duoc » nghiem duoc, nghiep cuoc, nghiep quoc
trach nhiem » trac nghiem
sach tranh » canh tranh
sach trach » sach truc, sat trach
nhiem ban » nghiem ban, nghiem van, nghiep ban
duoc hoc » quoc hoi
te sach » toc sach
su sach » so sach, vu sach
ban hoc » bang hoc, van hoc, bai hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te sach tranh nghiep duoc hoc ) or ( su sach trach nhiem ban hoc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach tranh nghiep duoc hoc ) OR ( su sach trach nhiem ban hoc ))*.