Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
thuc dieu » thu dieu, thuc hieu, thuat dieu
thuc dia » thuat dia, thuc giai, thuc dan
sach ly » sach y, sach lo, sach ty
vai cua » dai cua, hai cua, lai cua
so sach » so sanh, bo sach, co sach
vang xa » lang xa, mang xa, ang xa
ly vang » ly hang, ly van, ly quang
cua tre » cua te, cuu tre, cua triet

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 ly vang xa hoi. hieu ((va cach) or (va cac)) ((thuc dia) OR (thuc dieu)) thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ly vang xa hoi. hieu ((va cach) OR (va cac)) ((thuc dia) OR (thuc dieu)) thanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ly vang xa hoi. hieu ((va cach) or (va cac)) ((thuc dia) OR (thuc dieu)) thanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: so sach ly vang xa hoi. hieu ((va cach) or (va cac)) ((thuc dia) OR (thuc dieu)) thanh vai cua tre*.