Perhaps you should try some spelling variations:
muong doong » muong duong, tuong duong, cuong duong
muong dong » muong duong, tuong dong, huong dong
so sanh » do sanh
va cham » va chat, va tham
nang ma » tang ma, sang ma, nang cao
sanh ky » hanh ky, sang ky, nganh ky
cua tre » cua te, cuu tre, cua triet
va cai » va cac, va bai, va dai
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ky nang ma hoi. lieu ((va cai) or (va cham)) tuc xa ((muong dong) or (muong doong)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ky nang ma hoi. lieu ((va cai) OR (va cham)) tuc xa ((muong dong) OR (muong doong)) cua tre.
• Adding a wildcard symbol may retrieve word variants: so sanh ky nang ma hoi. lieu ((va cai) or (va cham)) tuc xa ((muong dong) or (muong doong)) cua tre*.