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
than cau » toan cau, phan cau, 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: ho chieu xanh - hanh trong van dong ((cong ban) OR (cong san)) than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - hanh trong van dong ((cong ban) OR (cong san)) than cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh trong van dong ((cong ban) OR (cong san)) than cau*.