Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
canh tran » canh tranh, hanh trang, banh trang
van nhung » van nhuong, va nhung, van phung
van hung » van dung, manh hung, van duong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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 - canh tran ((van nhung) or (van hung)) cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - canh tran ((van nhung) OR (van hung)) cong dan toan tap*.