Perhaps you should try some spelling variations:
xay nghiep » day nghiep, lam nghiep, xi nghiep
nghiep bao » nghiep giao, nghiep va, nghiep tai
sach bai » sach dao, cac bai, sach xa
bai nghe » thai nghe, van nghe, nam nghe
nghe dai » nghe dan, nghe di, nghe hai
bao hoc » bai hoc, bao goc, bac hoc
tu sach » thu sach, su sach, te sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu hoach xay nghiep bao hoc ) or ( tu sach bai nghe dai hoc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu hoach xay nghiep bao hoc ) OR ( tu sach bai nghe dai hoc ))*.