Perhaps you should try some spelling variations:
muong doi » huong doi, duong doi, tuong doi
mong doi » vong doi, dong doi, mong do
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
va cham » va chat, va tham
ty nang » ky nang, ty xang, ty hang
cua tre » cua te, cuu tre, cua triet
va cao » va cac, va co, va dao
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ty nang x hoi. hieu ((va cao) or (va cham)) tuc xa ((muong doi) OR (mong doi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty nang x hoi. hieu ((va cao) OR (va cham)) tuc xa ((muong doi) OR (mong doi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty nang x hoi. hieu ((va cao) or (va cham)) tuc xa ((muong doi) OR (mong doi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: so sach ty nang x hoi. hieu ((va cao) or (va cham)) tuc xa ((muong doi) OR (mong doi)) cua tre*.