Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
hanh dung » thanh dung, anh dung, hanh dong
luan dang » luan nang, luan danh, luan dong
dang cong » dung cong
tang bang » dang bang, tang ban, tang quang
cong tan » cong tac, cong san, cong thanh
tan tang » toan tang, fan tang, lan tang

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 dung luan dang cong tan tang bang~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh dung luan dang cong tan tang bang*.