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
sanh ky » hanh ky, sang ky, nganh ky
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cao tuc » dao tuc, cao duc, cao suc
cua tre » cua te, cuu tre, cua triet
va cao » va cac, va co, va dao

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 xa hoi. hieu va cao 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 xa hoi. hieu va cao tuc xa ((muong dong) OR (muong doong)) cua tre.
• Adding a wildcard symbol may retrieve word variants: so sanh ky nang xa hoi. hieu va cao tuc xa ((muong dong) or (muong doong)) cua tre*.