Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
hoc chieu » hoc thieu, ho chieu, hoc hien
hong bang » dong bang, hang ban, hong hanh
trinh va » trinh van, trinh vat, trinh ve
cong ban » cong bang, cong san, cong tan
phan tap » han tap, pha tap, phan tu
phan lap » phan dau
va hang » van hang, va nang, va lang

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 - hanh trinh va hang ((cong ban) or (hong bang)) ((phan tap) OR (phan lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh trinh va hang ((cong ban) OR (hong bang)) ((phan tap) OR (phan lap))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - hanh trinh va hang ((cong ban) or (hong bang)) ((phan tap) OR (phan lap))*".