Perhaps you should try some spelling variations:
muong dong » muong doong, muong duong, tuong dong
hieu van » hieu va, thien van, lieu va
dong cua » dung cua, cong cua, huong cua
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van hau » van ha, van hai, van dau
cua tre » cua te, cuu tre, cua triet
tuc mo » tuc mot, duc mo, toc mo

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 ky nang xa hoi. hieu van hau ((tuc mo) or (tuc co)) muong dong cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang xa hoi. hieu van hau ((tuc mo) OR (tuc co)) muong dong cua tre.
• Adding a wildcard symbol may retrieve word variants: so sach ky nang xa hoi. hieu van hau ((tuc mo) or (tuc co)) muong dong cua tre*.