Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
manh trung » manh tung, thanh trung, sinh trung
hoc thieu » toc thieu, hoc hien
manh hung » anh huong
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua phuong, cua 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((manh trung) OR (manh hung)) ((cua thong) OR (cua khong)) cong tac toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((manh trung) OR (manh hung)) ((cua thong) or (cua khong)) cong tac toan cao~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((manh trung) OR (manh hung)) ((cua thong) or (cua khong)) cong tac toan cao*.