Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh manh » hanh mang, lanh manh, hoang manh
cua thong » cua thuong, cua khong, cua tong
ca thuong » cao thuong, cua thuong, va thuong
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: hoc chieu xanh - hanh manh ((cua thong) or (ca thuong)) cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh manh ((cua thong) OR (ca thuong)) cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh manh ((cua thong) or (ca thuong)) cong tac toan cao*.