Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
doi trieu » dong trieu, doi chieu, doi trinh
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: doi trieu tinh - ((hanh trang) or (hanh chinh)) cua dung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi trieu tinh - ((hanh trang) OR (hanh chinh)) cua dung cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: doi trieu tinh - ((hanh trang) or (hanh chinh)) cua dung cong tac toan cao*.