Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
nhung cong » dung cong, thong cong, hang cong
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
manh toan » thanh toan, anh tuan, tinh toan
manh cua » doanh cua, ban cua
van toan » van tuan, van tan, 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 manh cua nhung cong ((((van toan) or (xuan toan))) or (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - canh manh cua nhung cong ((((van toan) OR (xuan toan))) OR (manh toan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - canh manh cua nhung cong ((((van toan) or (xuan toan))) or (manh toan)) cau*.