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