Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
luan hung » luan chung, lan hung, luan ung
hung cong » nhung cong, hung cuong, phung cong
chi tach » chiu trach, chi thanh, che tac
cong ban » cong bang, cong san, cong tan
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chi tach) or (chiet tach)) - hanh tang luan hung cong ban ((than cap) OR (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi tach) OR (chiet tach)) - hanh tang luan hung cong ban ((than cap) OR (khan cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chi tach) or (chiet tach)) - hanh tang luan hung cong ban ((than cap) OR (khan cap))".
• Adding a wildcard symbol may retrieve word variants: doi ((chi tach) or (chiet tach)) - hanh tang luan hung cong ban ((than cap) OR (khan cap))*.