Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
trong tan » trong quan, trong cac, trong ca
thanh lap » thanh san, phan lap, thanh van
thanh hai » thanh phan, thanh hoa, thanh san
nong dan » cong dan, nong san, nguong dan
cua dung » cua dang, cua dong, qua dung
dan cua » dan ca, ban cua, dai cua

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 - nong dan cua dung trong tan ((thanh lap) or (thanh hai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - nong dan cua dung trong tan ((thanh lap) OR (thanh hai))*.