Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
tieu xanh » tieu danh, chieu xanh, tien anh
hanh tinh » nhanh tinh, thanh tinh, canh tinh
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: theo ((tieu xanh) or (dieu hanh)) - ((hanh tinh) OR (hanh trinh)) cua dung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (dieu hanh)) - ((hanh tinh) OR (hanh trinh)) cua dung cong tac toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) or (dieu hanh)) - ((hanh tinh) OR (hanh trinh)) cua dung cong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) or (dieu hanh)) - ((hanh tinh) OR (hanh trinh)) cua dung cong tac toan cao*.