Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
van toan » van thanh, manh toan, xuan toan
van tuan » van quan, van ban, anh tuan
van tan » van ban, van tai, van thanh

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 nhung cong ((van toan) or (((van tan) OR (van tuan)))) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - canh tranh cua nhung cong ((van toan) OR (((van tan) OR (van tuan)))) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien nhanh - canh tranh cua nhung cong ((van toan) or (((van tan) OR (van tuan)))) cau".
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - canh tranh cua nhung cong ((van toan) or (((van tan) OR (van tuan)))) cau*.