Perhaps you should try some spelling variations:
thanh giau » thanh gian, thanh giang, thanh lieu
thuoc sach » hoc sach, nuoc sach, thuat sach
hieu van » hieu va, thien van, lieu va
giau cua » gian cua, gia cua, dieu cua
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van hac » van hoc, van ha, van hai
cua tre » cua te, cuu tre, cua triet
do van » dao van, so van

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach ky nang xa hoi. hieu van hac ((do van) or (vo van)) thanh giau cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky nang xa hoi. hieu van hac ((do van) OR (vo van)) thanh giau cua tre.
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky nang xa hoi. hieu van hac ((do van) or (vo van)) thanh giau cua tre*.