Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
lua nhung » cua nhung, la nhung, qua nhung
phan lua » phap lua, phan dua, phap luat
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan tap » phan lap, han tap, pha tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) OR (chieu tinh)) - co phan lua nhung cong tan phan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) OR (chieu tinh)) - co phan lua nhung cong tan phan tap*".