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 cong » dang cong, bang song, hang cong
cua bang » chua bang, cua ban, cua dang
cong tac » cong ty
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 cong 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 cong tac toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (chieu xanh)) - ((hanh tang) or (hanh trang)) cua bang cong tac toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (chieu xanh)) - ((hanh tang) or (hanh trang)) cua bang cong tac toan ban*.