Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
sach tay » xach tay, sach hay, sach nay
tay lang » tai lang, tay tang, tay quang
te sach » toc sach
truc va » thuc va, trung va
cua tre » cua te, cuu tre, cua triet
lang ha » long ha
va cao » va cac, va co, va dao
va cam » va cham, va cac, va cai
ha hoi » hoa hoi, ha noi, xa hoi

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 tay lang ha hoi. hieu ((va cam) or (va cao)) ((truc va) OR (thuc vat)) thanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tay lang ha hoi. hieu ((va cam) OR (va cao)) ((truc va) OR (thuc vat)) thanh dai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tay lang ha hoi. hieu ((va cam) or (va cao)) ((truc va) OR (thuc vat)) thanh dai cua tre*".