Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
hieu manh » hieu nganh, dieu hanh, hien hanh
hanh hinh » hanh chinh, hanh tinh, hanh dinh
dang cong » dung cong
hinh cua » chinh cua, sinh cua, tinh cua
cua dang » cua cong, cua ban
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cao » toan cao, thai cao, than cap

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