Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
hien xanh » hien hanh, hien nhanh, chieu xanh
manh hung » anh huong
dung cong » dung trong
vat dung » van dung, va dung, viet dung
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan cau » phan dau, phan cac, phan tu

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 - ((hanh trung) or (manh hung)) vat dung cong tan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((hanh trung) OR (manh hung)) vat dung cong tan phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((hanh trung) or (manh hung)) vat dung cong tan phan cau*.