Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, hanh trinh, canh tinh
nhung van » phung van, nhung bai, nhung cau
tong cong » trong cong, cong cong, dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
van toan » van tuan, van tan, van thanh
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 - canh trinh luat ((nhung van) or (tong cong)) van toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - canh trinh luat ((nhung van) OR (tong cong)) van toan cau*.