Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trung » thanh trung, hanh trang, manh trung
dai luong » dai cuong, dai duong, hai duong
cong ban » cong bang, cong san, cong tan
ban cao » bao cao, ban can, ban co
cao cap » cao chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) or (chieu tinh)) - hanh trung ((dai luong) OR (do luong)) cong ban cao cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu tinh)) - hanh trung ((dai luong) OR (do luong)) cong ban cao cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chieu tinh)) - hanh trung ((dai luong) OR (do luong)) cong ban cao cap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu tinh)) - hanh trung ((dai luong) OR (do luong)) cong ban cao cap*.