Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
hanh mang » nhanh mang, hanh trang, nhanh lang
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh toan
anh dang » anh dong, anh dung, anh bang
dan toan » van toan, dan than, xuan toan
va dung » van dung, va duong, vat dung

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - ((hanh mang) or (anh dang)) va dung cong ((dan toan) or (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((hanh mang) OR (anh dang)) va dung cong ((dan toan) OR (manh toan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh mang) or (anh dang)) va dung cong ((dan toan) or (manh toan)) cau*.