Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
hoang cong » hang cong, hoang long, hoang vuong
hien xanh » hien hanh, chieu xanh, hien khanh
tranh van » tran van, trinh van, thanh van
van hoang » van hoan, quan hoang, tran hoang
cong san » cong tac
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 tranh van hoang cong san phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - canh tranh van hoang cong san phan cac.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien nhanh)) - canh tranh van hoang cong san phan cac*.