Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh hinh » hanh chinh, hanh tinh, hanh dinh
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
gian man » gian lan, gian van, gian ban
gian dan » gian lang
hinh va » chinh va, hanh va, tinh va

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 xanh - hanh hinh va nhung ((cong dan) OR (cong tan)) ((gian man) or (gian dan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh hinh va nhung ((cong dan) OR (cong tan)) ((gian man) OR (gian dan)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - hanh hinh va nhung ((cong dan) OR (cong tan)) ((gian man) or (gian dan))".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh hinh va nhung ((cong dan) OR (cong tan)) ((gian man) or (gian dan))*.