Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
va thanh » gia thanh, ban thanh, va tinh
sach ky » sac ky, sach ty, sach kem
truc va » thuc va, thuc vat, trung va
va cham » va chat, va tham
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
va cao » va cac, va co, va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ky) OR (sach y)) lang xa hoi. hieu ((va cham) or (va cao)) truc va thanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sach y)) lang xa hoi. hieu ((va cham) OR (va cao)) truc va thanh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sach y)) lang xa hoi. hieu ((va cham) or (va cao)) truc va thanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) OR (sach y)) lang xa hoi. hieu ((va cham) or (va cao)) truc va thanh dai cua tre*.