Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
thong cong » trong cong, tong cong, thong thong
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
sang than » cang thang, dang thanh, sang tao
san than » san thanh, ban than, van than

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 cua thong cong ((san than) or (sang than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - canh tranh cua thong cong ((san than) OR (sang than)) cau*.