Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh mang » nhanh mang, hanh trang, nhanh lang
hang cong » dang cong, hang nong, bang cong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban
mang va » mang vua, hang va, bang va
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((thuc hanh) or (chieu xanh)) - hanh mang va hang cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((thuc hanh) OR (chieu xanh)) - hanh mang va hang cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: theo ((thuc hanh) or (chieu xanh)) - hanh mang va hang cong tan toan ban*.