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