Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh tang » hanh trang, anh tang, hanh mang
dung cong » dung trong
tranh ban » trinh ban, tranh hang, tranh luan
thu sach » tu sach, thuat sach, thuoc sach
tang cua » mang cua, hang cua, tang luan
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
tran ban » tran van, toan ban, tran bai

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) or (thu sach)) - hanh tang cua dung cong tan ((tran ban) OR (tranh ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (thu sach)) - hanh tang cua dung cong tan ((tran ban) OR (tranh ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (thu sach)) - hanh tang cua dung cong tan ((tran ban) OR (tranh ban))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (thu sach)) - hanh tang cua dung cong tan ((tran ban) OR (tranh ban))*.