Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trang » thanh trung, canh tranh, hanh trinh
hoc chieu » hoc thieu, ho chieu, hoc hien
trang cua » tranh cua, tang cua, trung cua
cua nhung » va nhung
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
than ban » thanh ban, than man, nhuan ban
toan ban » van ban

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 sang - hanh trang cua nhung ((cong tan) or (cong san)) ((than ban) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sang - hanh trang cua nhung ((cong tan) OR (cong san)) ((than ban) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sang - hanh trang cua nhung ((cong tan) or (cong san)) ((than ban) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - hanh trang cua nhung ((cong tan) or (cong san)) ((than ban) OR (toan ban))*.