Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
manh tuong » manh tung, manh cuong, minh tuong
cong cong » cong dong, trong cong, dung cong
manh toan » thanh toan, anh tuan, tinh toan
tuong va » truong va, thuong va, luong va
dan than » dan chan, ban than, van than
va cong » tai cong, cua cong

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 - manh tuong va cong cong ((dan than) or (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - manh tuong va cong cong ((dan than) OR (manh toan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - manh tuong va cong cong ((dan than) or (manh toan)) cau*.