Perhaps you should try some spelling variations:
thanh de » hanh de, thanh ve, thanh do
co sach » bo sach, cuon sach, hoc sach
ly hang » ly quang
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: co sach ((ly hang) or (ky nang)) ma hoi. lieu va cac ((xuc va) or (tuc va)) thanh de cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sach ((ly hang) OR (ky nang)) ma hoi. lieu va cac ((xuc va) OR (tuc va)) thanh de cua tre.
• Adding a wildcard symbol may retrieve word variants: co sach ((ly hang) or (ky nang)) ma hoi. lieu va cac ((xuc va) or (tuc va)) thanh de cua tre*.