Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh than » hanh han, hanh nhan, hanh phan
cua trong » cua truong, qua trong, ca trong
cua trung » cua truong, xuan trung, cua nhung
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

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 than ((cua trong) or (cua trung)) cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - hanh than ((cua trong) OR (cua trung)) cong tac toan cao*.