Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
luan trong » quan trong, luat trong, luan tuong
hien xanh » hien hanh, hien nhanh, chieu xanh
hanh mang » nhanh mang, nhanh lang, thanh hang
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than tap » toan tap, han tap, phan 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 hien xanh - ((hanh mang) or (hanh trang)) luan trong cong tan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((hanh mang) OR (hanh trang)) luan trong cong tan than tap.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((hanh mang) or (hanh trang)) luan trong cong tan than tap*.