Perhaps you should try some spelling variations:
nguong dan » huong dan
hien xanh » hien hanh, hien nhanh, chieu xanh
quan dung » quang dung, quan duong, qua dung
trong ban » trong san, trong tan, trong quan
ban thanh » ban hanh, ban hang
thanh lap » thanh san, phan lap, thanh hai
dan quan » van quan, ban quan, dan luan

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 - nguong dan quan dung trong ban thanh lap~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - nguong dan quan dung trong ban thanh lap*.