Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
thanh long » thanh cong, thang long, thanh huong
tranh ban » trinh ban, tranh hang, tranh luan
ban thanh » ban hanh, ban hang
dan khoan » dan khoa, dai khoang, toan khoan
long dan » long doan, cong dan, nong dan
khoan va » doan va, khoa ma, nhan va

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 ban thanh long dan khoan va~.
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - canh tranh ban thanh long dan khoan va*.