Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
cac phuong » cac truong
tap phuong » tai phuong, tay phuong, tran phuong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban

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 xanh - thanh trung ((cac phuong) or (tap phuong)) cong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - thanh trung ((cac phuong) OR (tap phuong)) cong tac toan tap.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh trung ((cac phuong) or (tap phuong)) cong tac toan tap*.