Perhaps you should try some spelling variations:
chieu xanh » chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, canh tranh, hanh trinh
nhung cong » dung cong, thong cong, hang cong
trang va » tran van, hang va
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

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 (chieu tinh))) or (chieu sach)) - hanh trang va nhung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu xanh) OR (chieu tinh))) OR (chieu sach)) - hanh trang va nhung cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu xanh) or (chieu tinh))) or (chieu sach)) - hanh trang va nhung cong tan toan cau*.