Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hoc chieu » hoc thieu, ho chieu, hoc hien
canh tran » canh tranh, hanh trang, banh trang
van nhung » van nhuong, va nhung, van hung
tran van » luan van
cong tan » cong tac, cong san, cong thanh
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - canh tran van nhung ((cong tan) or (cong trinh)) phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - canh tran van nhung ((cong tan) OR (cong trinh)) phan cac.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - canh tran van nhung ((cong tan) or (cong trinh)) phan cac*.