Perhaps you should try some spelling variations:
tranh nghiep » doanh nghiep, trinh nghien, trac nghiem
trinh thiet » trinh viet, trinh thi
sach trinh » hanh trinh, sach kinh, sach tren
sach tranh » canh tranh
nghiep dai » nghiep tai, nghiep bai, nghiep va
thiet dai » thiet hai, thuyet dai, hien dai
vu sach » vu bach, su sach, vu khach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( vu sach trinh thiet dai hoc ) or ( vu sach tranh nghiep dai hoc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( vu sach trinh thiet dai hoc ) OR ( vu sach tranh nghiep dai hoc )).
• Adding a wildcard symbol may retrieve word variants: (( vu sach trinh thiet dai hoc ) or ( vu sach tranh nghiep dai hoc ))*.