Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chong cong » cong cong, thong cong, cuong cong
hanh dung » thanh dung, anh dung, manh dung
hanh dong » anh dong
cua chong » cua cong, cua chung, cua khong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap
ha dong » hoat dong, van dong

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 - ((hanh dung) or (((hanh dong) OR (ha dong)))) cua chong cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - ((hanh dung) OR (((hanh dong) OR (ha dong)))) cua chong cong tac toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - ((hanh dung) or (((hanh dong) OR (ha dong)))) cua chong cong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - ((hanh dung) or (((hanh dong) OR (ha dong)))) cua chong cong tac toan cao*.