Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va cham » va chat, va tham
danh di » danh du, xanh di, danh dien
cua tre » cua te, cuu tre, cua triet
tuc va » thuc va, truc va, duc va
di cua » dai cua, doi cua, de cua

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang xa hoi. lieu va cham ((tuc va) OR (tuc xa)) danh di cua tre~".
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang xa hoi. lieu va cham ((tuc va) OR (tuc xa)) danh di cua tre*.