Perhaps you should try some spelling variations:
nguong dan » huong dan
hien xanh » hien hanh, hien nhanh, chieu xanh
luan dung » lan dung, luan dong, luan hung
trong san » trong cac, cong san, dong san
san thanh » ban thanh, van thanh, son thanh
thanh lap » thanh san, phan lap, thanh hai
dan luan » doanh luan, dung luan, tang 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 luan dung trong san thanh lap~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - nguong dan luan dung trong san thanh lap*.