Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
dung chung » dung cong, dung ung, dung trung
hien xanh » hien hanh, chieu xanh, hien khanh
hanh bang » hanh mang, lanh bang, hanh trang
chung dan » chung han, hung dan, chung nhan
anh bang » anh hoang, anh quang, tinh bang
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
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 ((hien xanh) or (hien nhanh)) - ((hanh bang) or (anh bang)) va dung chung dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - ((hanh bang) OR (anh bang)) va dung chung dan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien nhanh)) - ((hanh bang) or (anh bang)) va dung chung dan toan cau*.