Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
tranh va » tranh van, trang va, trinh va
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
chu van » cuu van, chu han

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: cho ((chu van) or (chieu xanh)) - hanh tranh va nhung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((chu van) OR (chieu xanh)) - hanh tranh va nhung cong dan toan cau*.