Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, mot chieu
trinh ban » trinh han, trinh san, trinh dan
ban trong » bai trong, ban tuong, ben trong
cong ban » cong bang, cong san, cong dan
cong tan » cong tac, cong san, cong thanh
khan cap » khan ap, than cap, khoan cam

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 - hanh trinh ban trong ((cong ban) or (cong tan)) khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh trinh ban trong ((cong ban) OR (cong tan)) khan cap.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh trinh ban trong ((cong ban) or (cong tan)) khan cap*.