Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
va thanh » gia thanh, ban thanh, va tinh
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
thuc va » thuc vat, thuc dan, thuc day
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
ha hoi » hoa hoi, ha noi, xa hoi
va cai » va cac, va bai, va dai
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 sac ky lang ha hoi. hieu ((va cai) or (va cao)) thuc va thanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang ha hoi. hieu ((va cai) OR (va cao)) thuc va thanh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky lang ha hoi. hieu ((va cai) or (va cao)) thuc va thanh dai cua tre*.