Perhaps you should try some spelling variations:
muong doi » huong doi, duong doi, mong doi
xa muong » ca muong, xa truong, xa dong
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
doi cua » dai cua, hoi cua
va cham » va chat, va tham
cua tre » cua te, cuu tre, cua triet
ty nang » ky nang, ty xang, ty hang
va cam » va cac, va cao, va cai
o hoi » co hoi, o hoc, o hai

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 ((o hoi) or (x ho)). hieu ((va cam) or (va cham)) tuc xa muong doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty nang ((o hoi) OR (x ho)). hieu ((va cam) OR (va cham)) tuc xa muong doi cua tre.
• Adding a wildcard symbol may retrieve word variants: so sach ty nang ((o hoi) or (x ho)). hieu ((va cam) or (va cham)) tuc xa muong doi cua tre*.