Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
doan khoan » toan khoan, toan khoa, doanh khoa
tranh van » tran van, trinh van, thanh van
tuan long » quan long, thang long, tuan duong
long doan » cong doan, dong doanh, rong doanh
khoan cam » khoa cam, khoan va, phan cam
van tuan » van quan, van ban, anh tuan

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 nhanh - canh tranh van tuan long doan khoan cam~.
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - canh tranh van tuan long doan khoan cam*.