Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trong » hanh trang, anh trong, hinh trong
trong van » trong cac
ho chieu » theo chieu, hoc thieu, doi chieu
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
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: ho chieu xanh - hanh trong van dong ((cong ban) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh trong van dong ((cong ban) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh trong van dong ((cong ban) or (cong san)) toan cau*.