Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
canh trinh » canh tranh, hanh trinh, canh tinh
hien xanh » hien hanh, chieu xanh, hien khanh
trinh van » trinh han, trinh quan, trinh toan
hang nong » thang long, han tong
van hang » van khang, van hoang, van thang
nong san » cong san, dong san, nong dan
san phan » san pham, van phan, sat phan
phan cac » nhan cach, phan dau, phan lap

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) or (hien nhanh)) - canh trinh van hang nong san phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - canh trinh van hang nong san phan cac.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien nhanh)) - canh trinh van hang nong san phan cac*.