Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
chieu xanh » chieu sach, chieu sang, chieu tinh
hien xanh » hien hanh, hien nhanh, hien khanh
hanh tang » anh tang, hanh mang, hanh tung
bang song » nang song
cua bang » chua bang, cua ban, cua dang
song tac » cong tac, sang tac, dong tac
tac toan » tap toan, tam toan, hach toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (chieu xanh)) - ((hanh tang) or (hanh trang)) cua bang song tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu xanh)) - ((hanh tang) OR (hanh trang)) cua bang song tac toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (chieu xanh)) - ((hanh tang) or (hanh trang)) cua bang song tac toan ban*.