Perhaps you should try some spelling variations:
luong manh » duong manh, luong thanh, duong minh
hoc thiet » hoc thieu, hoc thuyet, hoc hien
manh tung » manh hung, thanh tung
manh toan » thanh toan, anh tuan, tinh toan
ho chiet » ho chieu, ho thiet, hoa thiet
kha nang » ky nang, ki nang, thi nang
toan ban » van ban

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chiet) OR (hoc thiet)) tach - manh tung ((kha nang) OR (phap nang)) luong manh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chiet) OR (hoc thiet)) tach - manh tung ((kha nang) or (phap nang)) luong manh toan ban~".
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) OR (hoc thiet)) tach - manh tung ((kha nang) or (phap nang)) luong manh toan ban*.