Perhaps you should try some spelling variations:
tranh nghiep » doanh nghiep, trinh nghien, trac nghiem
tranhh nhiem » trach nhiem, trinh nhiet
sach tranh » canh tranh
nghiep tai » nghiep va
nhiem va » nghiem va, hiem xa
tu sach » thu sach, su sach, te sach
tai hoc » thai hoc, dai hoc, bai hoc
va hoc » van hoc

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

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